Categories: Syncing my calendar :

Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again

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Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again rikt 2/6/09 2:39 PM
Out of the blue this has cropped up again, I have tried all recommendations found through googling the error message given, yet I haven't seen any reply from Google, any insight on this?
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again thomper 2/11/09 7:30 AM
I'm having the same problem.  It happened in December and seemed to fix spontaneously after a few weeks.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again thomper 2/11/09 7:31 AM
I have sent email to support on this 2x.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again ejaicaa 2/11/09 8:59 AM
 
I have this problem too.
 
And when this problem does not appear, I am also missing some events that are not syncing.
 
This all started at the same time google mobile sync was enabled for me, dont know if it has anything to do.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again DavidGibson 2/11/09 9:17 AM
I have the same issue-- just started happening.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again DavidGibson 2/11/09 11:40 AM
Here's a packet trace if it helps-- looks like the connections are setting up properly...

14:34:23.425399 IP (tos 0x0, ttl 128, id 29550, offset 0, flags [DF], proto: TCP (6), length: 48) myhost.1671 > vw-in-f147.google.com.443: S, cksum 0xc8f0 (correct), 3768455983:3768455983(0) win 16384 <mss 1460,nop,nop,sackOK>
14:34:23.491920 IP (tos 0x0, ttl  48, id 56863, offset 0, flags [none], proto: TCP (6), length: 44) vw-in-f147.google.com.443 > myhost.1671: S, cksum 0x00fa (correct), 1085785595:1085785595(0) ack 3768455984 win 5720 <mss 1430>
14:34:23.492022 IP (tos 0x0, ttl 128, id 29551, offset 0, flags [DF], proto: TCP (6), length: 40) myhost.1671 > vw-in-f147.google.com.443: ., cksum 0xebe8 (correct), ack 1 win17160
14:34:23.493429 IP (tos 0x0, ttl 128, id 29552, offset 0, flags [DF], proto: TCP (6), length: 110) myhost.1671 > vw-in-f147.google.com.443: P 1:71(70) ack 1 win 17160
14:34:23.535804 IP (tos 0x0, ttl  48, id 56864, offset 0, flags [none], proto: TCP (6), length: 40) vw-in-f147.google.com.443 > myhost.1671: ., cksum 0x1853 (correct), ack 71 win 5720
14:34:23.537141 IP (tos 0x0, ttl  48, id 56865, offset 0, flags [none], proto: TCP (6), length: 1470) vw-in-f147.google.com.443 > myhost.1671: . 1:1431(1430) ack 71 win 5720
14:34:23.537337 IP (tos 0x0, ttl  48, id 56866, offset 0, flags [none], proto: TCP (6), length: 328) vw-in-f147.google.com.443 > myhost.1671: P 1431:1719(288) ack 71 win 5720
14:34:23.537390 IP (tos 0x0, ttl 128, id 29553, offset 0, flags [DF], proto: TCP (6), length: 40) myhost.1671 > vw-in-f147.google.com.443: ., cksum 0xe4ec (correct), ack 1719 win 17160
14:34:23.538168 IP (tos 0x0, ttl 128, id 29554, offset 0, flags [DF], proto: TCP (6), length: 226) myhost.1671 > vw-in-f147.google.com.443: P 71:257(186) ack 1719 win 17160
14:34:23.585002 IP (tos 0x0, ttl  48, id 56867, offset 0, flags [none], proto: TCP (6), length: 87) vw-in-f147.google.com.443 > myhost.1671: P 1719:1766(47) ack 257 win 6432
14:34:23.640909 IP (tos 0x0, ttl 128, id 29555, offset 0, flags [DF], proto: TCP (6), length: 563) myhost.1671 > vw-in-f147.google.com.443: P 257:780(523) ack 1766 win 17113
14:34:23.728154 IP (tos 0x0, ttl  48, id 56868, offset 0, flags [none], proto: TCP (6), length: 40) vw-in-f147.google.com.443 > myhost.1671: ., cksum 0x07b1 (correct), ack 780win 7504
14:34:37.096313 IP (tos 0x0, ttl  46, id 29275, offset 0, flags [DF], proto: TCP (6), length: 161) 174.36.30.2-static.reverse.softlayer.com.80 > myhost.1043: P 3095503406:3095503527(121) ack 1559135704 win 63784
14:34:37.098907 IP (tos 0x0, ttl 128, id 29556, offset 0, flags [DF], proto: TCP (6), length: 223) myhost.1043 > 174.36.30.2-static.reverse.softlayer.com.80: P 1:184(183) ack 121 win 16214
14:34:37.169293 IP (tos 0x0, ttl  46, id 29276, offset 0, flags [DF], proto: TCP (6), length: 40) 174.36.30.2-static.reverse.softlayer.com.80 > myhost.1043: ., cksum 0xe56c (correct), ack 184 win 63784
14:34:54.167582 IP (tos 0x0, ttl 128, id 29557, offset 0, flags [DF], proto: TCP (6), length: 40) myhost.1671 > vw-in-f147.google.com.443: F, cksum 0xe226 (correct), 780:780(0)ack 1766 win 17113
14:34:54.463436 IP (tos 0x0, ttl  48, id 56870, offset 0, flags [none], proto: TCP (6), length: 40) vw-in-f147.google.com.443 > myhost.1671: F, cksum 0x07af (correct), 1766:1766(0) ack 781 win 7504
14:34:54.463501 IP (tos 0x0, ttl 128, id 29558, offset 0, flags [DF], proto: TCP (6), length: 40) myhost.1671 > vw-in-f147.google.com.443: ., cksum 0xe225 (correct), ack 1767 w
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again bo-Rolf Fäßler 2/13/09 5:07 AM
check you ie proxy options: I had to set my proxy explicitly. then everything worked just fine
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again thomper1 2/25/09 9:19 AM
1. Can someone offer specific steps on how to "set up the proxy explicitly", as suggested above?  I can find the IE proxy settings in the tools menu.  Then what? 
 
2.  How might the "packet trace" above be used to fix this?
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again DavidGibson 2/25/09 10:01 AM
Hi,

Changing proxy settings will only work if you're actually using an http proxy. If you're a home user, chances are you're not using a proxy, but if you're using an internet connection at a business, you probably are. Regardless, if you're able to browse the internet in internet explorer, your proxy settings are likely to be correct. If you want to look at them in internet explorer, go to tools> internet options > connections > LAN settings. This is where proxies are defined.

The packet trace really only proves that a connection is being made to google's servers. You can see the tcp 3-way handshake on port 443 (secure http), and exchange of data, as well as the end of the "conversation" (Fin packets). If someone from google support were to read this thread, they might see the packet trace and figure out that the problem is probably on their end and they should go investigate, but there's not much we can do with it.

D
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again thomper1 2/25/09 2:15 PM
Thanks David,
 
Any suggestions on how to get Google support to attend to this?  As I said earlier, when I had this problem in December, it got "spontaneously fixed".  It is reasonable to assume they fixed it on their end?
 
Erik
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again DavidGibson 3/3/09 7:09 PM
Hi Erik,

I'm not sure how to get google support to look into this. Anyone have an email address for them?

D
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again byad.dc 3/4/09 5:58 AM
I also experience the same problem, but it was solved by reset IE setting.
Go IE -> internet option - > advance -> reset default setting.
I wonder if i need to remove IE as from time to time it alter my internet connection

(kindly note i have not been using IE for several months after chrome released).
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again c55 3/9/09 11:24 PM
Problem "Please connect to the internet to use Google Calendar Sync" solved by the persistence [V] of a password to the corporate FW with the entrance through IE !! 

...GCS does not know how to ask me for a FW  password (((
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again lmatrasko 3/10/09 1:19 PM
i was having the same issue...seems to be resolved after i went in and manually reset my proxy settings. we'll see if it continues to work. thanks for sharing the idea!
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again akayihan 3/10/09 1:42 PM
Resetting IE settings (proxy or otherwise) isn't helping clear the error on my home network. Any thoughts? Thanks!
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again firesea 3/18/09 8:33 AM
Same problem here.  Tried every solution listed.  Worked great for about 2 days, then this problem with internet connection.  I went to the link found in the log, it eventually loaded the data stream with the calendar information.. but it took awhile.  Wondering if the sync application is timing out before the connection is being made.  My calendar does seems to load very slowly.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 3/18/09 2:30 PM
I just started having this problem a few days ago. I thought it might be related to the work network, but it's the same error on the public net.

I'm also getting error_code 2016. My log file is below.

I tried uninstall/reinstall and deleting my Google Calendar and I tried resetting IE.

I'll check the link found in the log. I think Firesea might be on the right track. Something's timing out and Google Calendar Sync is producing a misleading error message.

I've archived about 2,000 items from my Outlook Calendar. I'll try deleting everything on my Google Calendar and trying again. I wonder about a scaling/performance issue on Google Calendar triggering the timeout then producing the false error messages.

I'll update with what I find.

tags: jfaughnan, jgfaughnan, outlook, google, bug, calendar synchronization, sync, error

Google calendar sync log

gcal_server = https://www.google.com
gaia_server = https://www.google.com
user = myn...@gmail.com
user agent = Google-SyncOL-0.9.3.5 Win-5.1/SP-3.0 Outlook-12.0.0.6316 Mode-3
Sync data file to use: 9770....75
Base time: 2009-03-17T18:51:00.000Z
Sending GET request to https://www.google.com/
calendar/feeds/default/private/full?max-results=25000&updated-min=2009-03-17T18:51:01.000Z&gsessionid=edfafdd....
SEVERE: GCalConnection::GetGCalXML -> status_code = 500, error_msg = Google Calendar Sync: Error syncing your calendar. Error code: 2016....
SEVERE: Unable to get events from GCal

Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 3/18/09 2:33 PM
PS. Sorry, I forgot to mention.

Some people get this error message due to a proxy problem. In that instance the error message is more or less correct, though it should say "unable to connect to google calendar" rather than the misleading "unable to connect to internet".

Others, like me, are running into a Google bug.

Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 3/18/09 4:22 PM
Ok, I'm making some progress here.

If I delete all the content from the target Google Calendar I can initiate a sync from Outlook. I archived about 2,000 appointments, so now I'm only synching about 2,300 appointments.

The sync process is going fairly slowly, about 36 events over 40 seconds, so about 1 per second.

So I think firesea is on the right track. 

When a Google Calendar reaches a certain complexity threshold, the calendar takes too long to generate the feed (GetGCalXML) that Google Calendar Sync uses. Google Calendar Sync then hits a timeout and falsely treats this as a bad or missing net connection, or returns a 2016 (meaningless) error code.

As an iPhone user I also use Google's exchange synchronization service, and I wonder if that further slows response to the GetGCalXML request. (Also my sync is always 1 way from outlook to google)

An interim fix may be:

1. Delete all content on the Google Calendar.
2. Pare down the Outlook calendar.
3. Do a 1 way sync to Google Calendar

 There are several bugs here for Google to fix

1. Reconsider their timeout architecture. This is a very crude approach to determining that Google Calendar is "alive".
2. Address Google Calendar performance issues.
3. Introduce an option to sync a smaller range (example: only x days in future)
4. Fix the Google Calendar Sync error message so it's more useful.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 3/18/09 5:19 PM
No fix, unfortunately.

After I purged my calendar I was able to initiate a sync. I stopped it at the 44% mark.

Then I tried to restart, but I got the "cannot connect to the internet" error message.

So I don't think it's a simple timeout. It looks like my Google Calendar can't generate the feed at all! So things only work when the calendar is empty.

I have other google accounts and calendars, so I'll see if it's an account or calendar specific bug.

john
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 3/18/09 7:13 PM
Making progress. I'm now updating what I learn on my tech blog:
http://tech.kateva.org/2009/03/google-calendar-sync-out-of-order-error.html

I created a brand new calendar on one of my Google Apps domain accounts. I was able to sync, stop the sync, restart the sync and complete the sync.

So the problem is specific to my primary gmail account and purging the account doesn't fix the problem.

Now I'm going to try a combination of purging and turning off iPhone synchronization from that account.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 3/18/09 9:14 PM
I've put the updates on http://tech.kateva.org/2009/03/google-calendar-sync-out-of-order-error.html.

It's working at the moment, though I think I've exceeded some calendar transaction quote due to all my heavy testing.

My current guess is that:

1. Google recently added Exchange mail synchronization to the iPhone.
2. As a result of tweaking their Exchange server offering they, for some people, broke the Calendar feed used during synchronization.
3. I disabled exchange sync and was able to get Outlook sync to work again.

Tomorrow I'll see if it STILL works now that I've re-enabled iPhone Exchange Sync.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 3/19/09 5:03 AM
It's working now. I'm guessing I did fix something, but it might be Google fixed it.

From my blog post:

"It's working again. I don't know if I really fixed anything of if Google fixed something during all my debugging attempts. I'd give it a 70% probability, because of how it played out, that turning off Exchange services, purging the calendar, then restocking it, then re-enabling Exchange services did fix the problem."
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again firesea 3/19/09 12:21 PM
Hey jfaughnan - glad you got it working.  I went into my Google calendar, where I had initially loaded appts going back 4 yrs (duh).  I then went as far back as the Google calendar would let me and found 4-5 reoccuring appts that came into "present time".  I deleted all of those and made sure the Google calendar only went back about 6 months.  Sync - worked first time and still working great with both my home outlook and work outlook. 
 
One thing that may have contributed to all this, I deleted 3 yrs of appts from my home calendar then synced with Google.  Google responded with xx number of appts have been deleted, do the same for Goolge - I said yes.  Then when I came to work, sync problem had started. 
 
So.. timing out, bad appts, too severe of changes, or Jfaughnan's solutions or both...  More tricks for everyone to try.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again c55 3/24/09 7:18 AM
save you firewall password in IE
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again akayihan 3/24/09 12:57 PM
[I'm a home user, no proxy or firewall settings to be adjusted and sync used to work just fine until Dec 08 when I got the "Connect to internet" issue]

So I deleted ALL of my Google Calendar history (back to 2006) and deleted all of my Outlook history up to the last 3 months (about 200 events). I tried doing a sync and it works, but it takes 2 HOURS to complete.

This really seems like a Google side issue - I wish they would reply to this post.

Cheers!
(unknown) 3/27/09 8:15 PM <This message has been deleted.>
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again acelaya 3/31/09 11:33 AM
I deleted my Google calendar, then the sync worked.

I had just reloaded the computer (Vista) and Office 2007; this is when I realized that the Google Calendar Sync wasn't working.
Tried all the proxy settings that people have mentioned, to no avail.

Maybe there is a problem with the GCS being unable to overwrite the old data on the calendar, or perhaps a capacity issue?


Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Perm 4/8/09 9:08 AM
Just chiming in that if the proxy settings and various other tweaks do not work, simply delete your google calendar events.  If you go to the calendar settings, find your calendar, there's a "delete" link on the very right.  Clicking that will blow away everything on your google calendar, but then they sync works.  The weird thing is that I had the same exchange (work) and personal calendar settings before and AFTER this OS reinstall, and never had this issue.  It seems to be working now, but very slowly.

Hopefully google will continue to improve this app, at least until Microsoft finds a way to sync events directly to google calendars (not holding my breath on that one.)
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again sanse 4/20/09 12:16 AM
This is how I solved  it.

I was using this utility to sync from Outlook to iCal, through Google. Really, the problem was in the second part, between iCal and Google.
I reset my private URL adress for the Google Calendar. I eliminated the Google calendar I had en ICal and redefine a new one with new URl. Everything worked out.

No speed problems,
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 4/22/09 6:41 AM
I last posted on this a month ago (see http://tech.kateva.org/2009/03/google-calendar-sync-out-of-order-error.html). I was doing well until a few days ago and it's back.
 
To be clear, 2016 is a very generic error code. It just means something is wrong, and it can have many causes. The version I'm experiencing is the intractable sort.
 
I was able to get one successful sync by the method of clearing all events from my target google calendar (and waiting then until my Google-exchange server connected iPhone calendar was cleared out). The restore sync was very slow but completed. The problem then returned on the next sync.
 
The usual error message is in the log:
 
gcal_server = https://www.google.com
gaia_server = https://www.google.com
user = [me]
user agent = Google-SyncOL-0.9.3.5 Win-5.1/SP-3.0 Outlook-12.0.0.6316 Mode-3
Sync data file to use: .....
Base time: 2009-04-21T14:01:35.000Z
Sending GET request to https://www.google.com/calendar/feeds/default/private/full?max-results=25000&updated-min=2009-04-21T14:01:36.000Z&....
SEVERE: GCalConnection::GetGCalXML -> status_code = 500, error_msg = Google Calendar Sync: Error syncing your calendar. Error code: 2016. Please see our <a>Help Center</a> for more information.|http://www.google.com/support/calendar/bin/answer.py?answer=98566
SEVERE: Unable to get events from GCal
 
The http://www.google.com/support/calendar/bin/answer.py?answer=98566 url, by the way, is a worthless general troubleshooting page.
 
I believe that whatever was broken a month ago is broken again. We can all play with this problem and restore sync, but until Google fixes their bug our old friend 2016 will return. I've seen other complaints about Google Calendar performance lately, and my own web calendar rendering has been very slow. I wonder if this bug crops up when their systems are overloaded and GCal refuses connections.
 
So now we wait.
 
Google does provide support for paid Google Apps by the way. It's NOT cheap, especially for a family (there's per user charge -- by comparison Apple's MobileMe family pack is much cheaper). Still, I'm considering it. Google's free services are expensive in their own way.
 
tags: jfaughnan, jgfaughnan, google, google apps, GCal, error, bug, failure, synchronization, outlook, desktop, cloud, iPhone
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 4/22/09 6:49 AM
Incidentally, on reviewing posts over the past month I'd like to call our Firesea's note on removing all items > 6 mo old and especially recurring appointments where the initiating instance is > 6 mo old. Those are known to cause GCal problems.
 
Also I should mention that over the past month I saw the characteristic 1 kb log entries indicating sync failure on the average 1-3 times a day. So 2016 isn't rare even when things are working properly. What's different now is that all the syncs are failing.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again themarshall 4/22/09 1:31 PM
I'd like to add my resolution as another data point.  I had been sync'ing quite well for a while and then started getting the 2016 error.  Changing my proxy settings made no difference but deleting my current gmail calendar and then re-syncing worked for me.  I did clean up my exchange calendar first by archiving everything older than 4 months.  Hope that helps the next person as much as this thread helped me.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 4/22/09 9:29 PM
Themarshall, many people report this fix, but in my case the problem recurred after the fix. Are you still in good shape?
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 4/24/09 6:38 AM
Still down after 3-4 days. I guess it's not going to get fixed at Google's end. I'll probably have to do the full court press:

1. Stop desktop calendar sync and also turn off iPhone to Google Exchange account sync
2. Purge my Google Calendar
3. Reduce the number of Outlook events (archive more events)
4. Resync and confirm it's working for a day or so.
5. Reinstate GCal to iPhone exchange services

Sigh.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again shanekleiner 4/24/09 9:49 PM
Please connect to the internet no longer comes up for me know.  Don't worry about resetting all of the internet explorer settings, none of that works.  What did is deleting everything off of my one calendar (so click on calendar settings and delete, it does not delete the actual calendar, just the data).  Make sure you click on option within the sync button in the task pane, and select One way, from Outlook to google.

It works!
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 4/27/09 1:11 PM
Thanks shanekleiner, but I've done that several times. I get one good sync every time I purge my calendar, but that's it. I've tried every trick I can come up with, including moving the target calendar from my gmail account to a fresh new google apps account, disabling iPhone sync with the calendar, etc, etc.

I guess my next trick is to really purge my Outlook calendar, make it as small as possible.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 4/27/09 2:19 PM
The plot thickens! I savagely hacked the calendar I sync from 2700 events to a mere few hundred and I cleared out my Google calendar.

Now I CAN sync repeatedly, but each time I get a curious messages saying that I've removed '125' messages  and did I want to remove them from Google Calendar.

In reality, of course, there are NO Google calendar messages and I removed about 2200 messages.

The headers of the logs are also interesting. My hunch is that there are caching bugs on the Outlook Sync side, and I wonder if someone hard coded a 125 message limit (suspiciously roundish number).

FIRST
Base feed contains 156 entries
Delta feed contains 0 entries
156 entries read
156 entries processed
435 entries processed

SECOND
Base feed contains 156 entries
Delta feed contains 511 entries
667 entries read
667 entries processed
435 entries processed
Briefly loaded 433 entries.

THIRD
Base feed contains 667 entries
Delta feed contains 2 entries
667 entries read
667 entries processed
435 entries processed
Briefly loaded 433 entries.

Hmm.

I'm going to try to delete everything in ...\Local Settings\Application Data\Google\Google Calendar Sync\data_files and see what happens.

Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jfaughnan 4/27/09 2:36 PM
Ok, after deleting everything in ...\Local Settings\Application Data\Google\Google Calendar Sync\data_files and then doing a sync my log shows ...

FIRST

user agent = Google-SyncOL-0.9.3.5 Win-5.1/SP-3.0 Outlook-12.0.0.6316 Mode-3
Base feed contains 511 entries

Delta feed contains 0 entries
511 entries read
511 entries processed

435 entries processed
Briefly loaded 433 entries.

SECOND
Base feed contains 511 entries
Delta feed contains 297 entries
531 entries read
531 entries processed
Skipping appointment with unknown message class: IPM.Appointment.Live Meeting Request
Skipping appointment with unknown message class: IPM.Appointment.Live Meeting Request

435 entries processed
Briefly loaded 433 entries.

Lord knows what the Delta feed is or why it grows even when there's no change at either end.

The good news is that after deleting the old data files I'm no longer getting the 125 messages removed message. So maybe that bullet is dodged.

I've now completed multiple synchronizations, so I think by throwing out 75% of my appointments I'm down in a range Google Calendar Sync (alpha software?) can handle.

Man, do I hate synchronization.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again ydelatorre 8/10/09 6:00 AM
this is what worked for me. 
Go IE -> internet option - > advance -> reset default setting.

i am in office with chrome 2
outlook 2003 sp3

proxy automatic or not did not make a change to me. 


good luck
cheers
Y
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jaxman3d 8/20/09 6:51 PM
OK. I'm on Windows 7 and Outlook 2007
I have tried all the above. Reset IE, set auto detect. I still get the error "please connect to the internet to use google calendar sync"
Has anyone found a solid answer?
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Dave Osborne 8/24/09 3:26 PM
Vista Home Premium SP1 (64 bit) and Outlook 2007 - I added Google Calendar Sync to my list of exceptions in Windows Firewall and it fixed the problem.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again RoshanMani 9/11/09 12:19 PM
My setup is as follows.. I sync my outlook on my work PC to Google Calendar and then sync my Google Calendar to my Outlook on my home PC.. I had to reinstall my home PC (recovered my outlook.pst) and google calendar sync to my home PC stopped working.. was getting the error "connect to the internet to use google calendar sync".. Tried many things and nothing worked.. 

So here's what I did.. I deleted all my existing calendar events from my home PC and then sync'd from my empty outlook calendar to google calendar. Worked perfectly. Then I changed the settings on the sync tool and sync'd the google calendar to outlook on my home PC.. worked perfectly.. It's been fine ever since..
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again John Mc 9/15/09 5:49 AM
This problem comes and goes - it's got to be on the google side, as we haven't changed anything on this end.  :(
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again prensch 9/17/09 11:27 AM
I've been trying to get this sync program to run for a couple weeks now. I am running WinXP Pro 2002, SP 3, and Outlook 2003. I've installed, uninstalled, and reinstalled, but can't seem to get the program to work. Everytime I try to sync, I get the infamous "Please connect to the internet to use Google Calendar Sync" error. 
 
Any suggestions anyone? I'd really love to get this to work.  
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again BadTicket 9/20/09 11:12 PM
Maybe this is a solution: Deinstall iTunes
On my PC, after deinstalling iTunes the sync works correct...
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again prensch 9/21/09 6:02 AM
Uninstalled iTunes, but no apparent difference. Very frustrating...

Thanks for the input though. It makes sense as iTunes has a sync function which could possibly interfere...
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again BadTicket 9/22/09 12:52 AM
There are other programms installed by Apple when you install iTunes. I deinstall "Apple Application Support", "Apple Mobile Device Support" and "Apple Software Update" too.
Maybe this helps...
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Ts6 10/7/09 9:37 AM
Calendar Sync gave the following message: "Please connect to the internet to use Google Calendar Sync" when trying to sync with Outlook.  I went through all help forums on Google's side [no help yet] and decided to investigate within Outlook [I still use Outlook 2003 under Win XP SP2 on this machine, but this solution may work for other setups, and for those, you'll just have to find where Microsoft hid/buried this setting].

Problem solved...(at least for me). Problem [setting change] was on Microsoft's side, not on Google's side.  The problem is with how Outlook handles information requests-using the "Com" "Add-in" provided by Google.  The Sync Add-in simply needs to be activated on Outlook "startup" instead of "on demand".  Even when set to run on startup, Outlook sometimes forgets to do so, and the Sync software probably thinks it can't access a network because it's not even able to get as far as getting access to your data.  But to just get it working, try [two steps]:

1.  In Outlook 2003, go to Tools --  Options -- [ Other ] tab, [ Advanced ] button, [ COM Add-ins ] button.
Your Google Calendar Sync COM Add In will be listed here, simply check the box to enable; click Apply, OK, OK, etc.
2.  Go to the Google Calendar Icon in the Taskbar, Right-Click to Sync, and watch it now work.  
Your Google Calendar Sync Com Add-in must be listed in Outlook's COM Add Ins section to work [if it isn't, the Google Calendar Sync software probably requires re-installation, which should not affect either Calendar, but might make it work].

Good luck.

Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again ankermark 10/8/09 11:47 AM
I uninstalled google calendar sync.
Dropped Google Chrome as my default Browser.
Deleted my google calendar.
Installed Google calendar sync. using Internet Explorer 8.
Selected 1way sync from Outlook to Google calender in "options" when right clicking or setting up google cal. sync.
Checked to make sure the sync worked. it did.
Then went to a 2way sync.
I now use Internet Explorer 8 as my default browser
 
If i'm right about Chrome not working with Calendar Sync then that's weird.
However, we're all here trying to figure this out and that's what google had in mind when
they started (One big giant collective mind)
We're all part of the solution. we are the IT department at Google. OK so maybe
i'm a little dramatic. I'm just happy I got this great "Free" tool to work (Google Calendar)
 
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again ankermark 10/10/09 12:44 PM
Ts6 is right!   Ts6 is right!  Ts6 is right! 

Thanks Ts6... well done

disregard my previous post (google calendar sync works with chrome and i.e. 8)
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again RoshanMani 10/11/09 3:13 AM
I use Outlook 2007.. Couldn't find the COM Add-ins in the suggested location.. But found it in the Trust Center and the GCS dll was in the Inactive add-in's section.. Through the Manage Add-in's function, I added this dll to the active add-in's, and when I did a sync, Outlook crashed :-) After I restarted Outlook 2007, the sync worked..
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again thomper 10/12/09 12:51 PM
I tried Ts6's solution but outlook kept crashing and synch didn't work,
 
I then tried deleting all repeating entries in Google calendar (such as birthdays).  I paid special attention to items that were more than 6 months old, that survived despite Gcal's purging anything more than 6 months old. 
 
It worked.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Dmtalon 10/16/09 6:08 AM
Good Morning,

This lovely error popped up for me Yesterday afternoon.  I've followed this thread in the past because my boss has had this same error on her new laptop since Google Calendar Sync was installed. (Never resolved until today).

At work, through our company proxy (as IE was set up) this started happening to me.  Completely unrelated, I happen to use Putty(Telnet/SSH client) to connect to a personal Linux machine.  Through Putty I create a tunnel (or proxy) on my local machine to my Linux Server.

My fix was to change IE's settings to my local proxy (127.0.0.1 port 1080)  which allowed Google Calendar Sync to connect through that newly defined proxy.  After the sync completed, I changed IE's settings back to my company proxy and Google Calendar Sync continued to work.  And as of this morning it is still working.

This morning, I brought my thumb drive with Putty on it over to my boss's laptop, and connected (via SSH) to my Linux server creating a local proxy.  Switched her IE settings to the new local proxy.  BAM, Google Calendar Sync connected, and synced her calendar.  Next, I switched IE back to our company proxy, disconnect putty, and as of right now it is working on her laptop as well (on our company proxy).

As an FYI, before I made it over there this morning, I had her try just putting in 127.0..0.1:1080, letting it fail and then putting it back.  That did *not* work.  It appears you need to create a valid proxy with a connection to the internet) for it to work.

I have no idea why this works, but it has now worked on two laptops.  While my method is fairly technical, I do know of another possible way to set this same scenario up without owning a Linux Server (I have not verified this would work, but it's certainly worth a shot).  Google "http-tunnel" They have a free and pay version. For our needs, the free version, since it's a temporary setup, should work just fine.  You will need to be able to install the http-tunnel application on your machine, and follow the instructions to set up the "proxy" for IE (Google Calendar Sync uses IE's connection settings).

I certainly hope this is not just an isolated "fix" for my boss and I, and that it can help out others facing this problem!  Good luck to everyone!

For reference we are both on:
-Microsoft Windows XP SP2
-Outlook 2007
-IE8 (connecting through a company proxy)

Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again BadTicket 10/19/09 4:51 AM
I thougt my problem was solved, but it comes up again :-(
I try the workout from RoshanMani, my Outlook crashes too, but after the restart the following requester comes:

Error
Could not initialize Google Calender Sync add-in for Microsoft Outlook (TM): error -2147023170, code 10 10. Please see our Help Center for more information
                                                                                                       [OK]

So I don't believe that this is a Microsoft problem, because other Sync-Software works, I think that Google should work here more for his users...
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again theogluck1 10/19/09 4:30 PM
I just posted about this issue an hour or so ago and now just discovered this thread- so obviously it is not just me and assuredly a Google issue.  Nothing has changed on my end - and I might add that the Mail Notifier is also broken now as well....(and I am running MS Outlook Office Pro 2003 on XP)
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Dmtalon 10/20/09 6:16 AM
I absolutely believe that something is happening within the Google Calendar Sync application that confuses it to believe it can't and/or isn't connected to the internet.  Both mine and the other laptop I "fixed" by adding a different valid proxy are continuing to sync after both received this infamous message.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again theogluck1 10/22/09 9:32 AM
for whatever reason - both calendar sync and GMail notifier are now working just fine.  Initially I thought it was Google issue, but they worked OK when off my company's network (ah ha!) but now that is not an issue either.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again b33k34_N 11/9/09 8:35 AM
This has just stopped working for me for the second time.  First time round i deleted my Google calendar and recreated it, uninstalled and reinstalled GCS I've just done this again but it's a time consuming process and I don't want to be doing it regularly. 

Syncing GCal to Outlook and via Exchange sync to an iPhone.  Corporate network. 

Based on my experience it's can't be a problem with Outlook or my desktop settings (as a simple uninstall/reinstall of GCS doesn't work).  GCS works for a while so i'm thinking it is related to the number of events (GCS is now syncing 2600 odd). 




Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again b33k34_N 11/9/09 8:35 AM
How do we report this as a bug?
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Alexm007 11/23/09 8:43 AM
I was trying to use GCS at work, behind a proxy,  I tried EVERYTHING, uninstalling, reinstalling, rebooting, proxy settings.....I finally got it to work by reverting to an old version of IE.  My work has us using IE6.0, and I had upgraded to 8?  It was with 8 that my GCS didn't work.  When I went back to IE6 everything worked like a charm.  Now I use firefox just to avoid using the IE version without tabbed browsing.  Good Luck all!
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again theogluck1 11/24/09 8:47 AM
.....and both Notifier and Calendar Sync are once again not working for some reason......
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again gtamanini 12/2/09 3:56 AM
I had the same exact problem and fixed it!
After a long research and testing process I discovered that the problem was being caused
regarding Internet Explorer configuration for those who are using Google Calendar Sync
behind a proxy (and maybe for others as well...it's worth a shot...).
Try this:
Open Internet Explorer, go Tools, Internet Option and choose Advanced.
Look for the section/group "Security" and uncheck the following two options:
 
[  ] Check for publisher's certificate revocation
[  ] Check for Server certificate revocation
 
After doing this, restart it all: Outlook, Internet Explorer and Google Calendar Sync.
 
It's working fine since I changed this configuration. I could reproduce the error
checking these boxes againg and confirming that it was not a coincidence then
I unchecked again and the problem was solved.
Good luck people!
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Norm Wright 1/5/10 11:47 AM
I did the IE advanced setting fix and it worked.
Level 1
3/4/09
I also experience the same problem, but it was solved by reset IE setting.
Go IE -> internet option - > advance -> reset default setting.
I wonder if i need to remove IE as from time to time it alter my internet connection

(kindly note i have not been using IE for several months after chrome released).

Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again mamnechi 1/11/10 2:08 AM
In my case the cause is Lotus Notes invitations. Delete the lotus notes invitations fomr your outlook calender
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Splinter4e 2/21/10 1:30 AM
Problem solved...
Using OUTLOOK 2007
 
 
1.  In Outlook 2007, go to TOOLS -- TRUST CENTER .
2.  Go to the ADD-INS menu
3.  At the bottom of the page, select COM ADD-INS and click GO
4.  In the PopUp, select the option of GOOGLE CALENDAR SYNC and click OK

Good luck.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again HoolieJackson 2/22/10 11:07 AM
I'm still having issues.  {IE 7 and Outlook 2003} Everything worked ultra-smooth for the first month of using Google sync, even with a count of 7,000 items loaded.  Here's what I tried with the new problem, with no luck:
 
1. I re-installed Sync.
2. Within IE, I have done the steps to (1) reset default settings and (2) uncheck the certification revocations boxes.
3. Within Outlook, I have checked the COM add-in for Google Calendar Sync. Note that everytime the sync locks up, I close and restart Outlook, but have to go in and re-check the COM add-in; it's just not holding that setting for whatever reason.
 
Now if I start the sync and hover over the icon, it says "Loading Google calendar events," but it's not giving a progressive count like it used to.  Then the "please connect" message comes up and I'm toast.
 
Should I just wait for this intermittent problem to go away?  I'm not in a position at work where I'm allowed to play with proxy settings and some of the other listed options.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again HoolieJackson 2/23/10 8:29 AM
Hey, it's working again.  I guess the ultimate resolution is (1) make sure all your boxes are checked/unchecked appropriately, then wait a day.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again bodrey 2/25/10 7:24 AM
The answer listed first as, the "Best Answer" certainly was the FIX for me.  My sync progam was very strange, since it seemed to work once in a while on its own (before I researched this problem, I simply just clicked "OK" after my PC told me to connect to the internet), but this fix was exactly what I needed to do, and it worked great!
 
Hey GOOGLE GUYS, can't you make a fix for this problem during "Calendar Sync" install?
 
I know other "Add-Ins" do this for you automatically, like (sorry for saying the name, I am personally not a fan either), but iTunes autoloads their "Com Ad-In" and the box is checked automatically for you?
 
Just a thought or suggestion!
 
Thanks! 
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again vampyren 3/22/10 1:50 AM
I got the "Please connect to the internet.." and started googling for answers and this actually did the trick.

I use WinXP and outlook 2007. So the menus are somewhat different but the theory applies.

Go to Outllok->Tools->Trust Center-->Add-ins
Here the "Google Calendar Sync" was under the inactive section.
What i did was to go to Macro Security and change the permission for this add-in so it pops under Active section.

Now when i click Sync it is doing something. Actually my outlook has locked itself during the process so i dont want to kill it just yet but it gives you the idea how to get one step further in you use Outlook 2007.

Thanks for the tips OP.

Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again vampyren 3/22/10 2:29 AM
For some reason i cant edit my last post but anyway it seems my description did not work so well since when i restart outlook the add-in pops under inactive again but a proper solution is suggested on Microsoft (for Outlook 2007 that is).

http://msdn.microsoft.com/en-us/library/bb386106.aspx

I short go to:
1) HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Google.GoogleCalendarSync\
2) change the "LoadBehavior" to 3. (mine was set to 9)

tada now it works as it should. Add-in is loaded at start-up.

For some reason my outlook just freezed when i sync now but i think this is some other problem. Back to googling again :(
I think it might be due to the proxy and all the company security stuff now but lets see.


Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again mauichas 4/18/10 8:29 AM
It was not that hard. I tried reinstalling and a few of the other suggestions and it still had that same error notice. I fixed it by deleting everything on my calendar and reloading (Syncing) it. Presto!
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again aka82 4/27/10 4:33 PM
Also had this frustrating issue of "connect to the internet to use GCS"

Tried everything in this thread except proxy settings (uneeded)

TS6 helped - but then as others described outlook crashed and next time i went back to the com-addin: gcs was unchecked again. but it got rid of the "connect to the internet" issue

changed setting on IE - still same result outlook crashed when trying to sync

decided to close google calender and outlook(not go offline just closing this application) then use the GCS. worked perfectly fine. all events were updated to both google and outlook calenders when i logged back in/reopened outlook. my assumption would be that outlook would crash while trying to put appointments in the calender while it was open.

Windows Vista Home Basic
Microsoft Outlook 2003
Mozilla Firefox user (not IE) i cant fathom why which one you use would affect these apps.

Hope this helps those of you where outlook is crashing while trying to sync
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again acesn 5/12/10 11:30 PM
I have MS outlook 2007. In the calendar view, I randomly came across the ability to add the "COM Add Ins" command to one of the outlook toolbars I had open: right click on the toolbar (any), select customize, select Tools, (for me) scroll to the bottom where I found COM Add Ins. Hold down left mouse key and drag into the toolbar.
Then click on COM Add Ins in the tool bar--I saw that Google Calendar Sync was unchecked. I then checked it.
Afterwards, I right clicked on the toolbar, selected customize,  and dragged the COM Add Ins button back into the customize window, which removed it as I don't need it routinely.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again hipp 5/13/10 6:08 PM
All the answers are not helpful.
My operation system is Win 7, microsoft office 2007.
In fact, Google Calendar Sync don't have publisher certificate. So it will work if the internet option is changed.
Internet Explorer - Tools - Internet Option - Advanced - security -Do not check the box of  "check for publisher certificate revocation"

Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again thejtluv 5/26/10 12:39 AM
This was working great until the last couple weeks. Win7 64bit Outlook 2007. Not sure what has changed, reinstall does no good. Seems after first install it gives the internet connection error, then seemingly syncs fine, with information as to what it's doing when you hover over.  This is inside a work environment, our high level network geek hasn't done anything that he knows of that would prohibit it working.  IE proxy settings are set to automatically detect.  Any thoughts?  Forgive me, I've read some of the responses on earlier pages, but not all.  Thanks
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again thejtluv 5/27/10 9:34 AM
I get the "please connect to the internet to use google calendar sync" error at first launch, but not again after that.  And I can go into COM add-ins while it's running and see that it's active. It seems as though it's working, but never does anything. It always says I have 904 events, but nothing ever copies over (1 way from outlook to google).  Maybe a corrupt entry somewhere or something?  This is driving me bananas.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again thejtluv 5/27/10 11:48 AM
Figured mine out. Not sure why this setting in Outlook wound up this way, I've been using Shoretel software (for our IP phones) long before the problem.  After looking at the log and searching on "Skipping appointment with unknown message class: IPM.Appointment.CallHandle" that was in the log file, someone else had a similar problem: http://www.google.com/support/forum/p/Calendar/thread?tid=057bcd71cbbe7476&hl=en

I changed the same setting from "Shoreware Appointment" to "IPM.Appointment".  I'm not sure how the Shoreware entry was even in there, there is no form in the forms section, and when I went back in, the "Shoreware Appointment" option is no longer even available. 

If your goocal sync seems to be working fine, but appointments aren't going outlook -> google, this is a good one to check.  Hope it helps...
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Fopster 7/15/10 2:41 AM

I tried the most popular answer to this from Ts6, but it doesn't work for me.

(Popular answer Go to this answer

Calendar Sync gave the following message: "Please connect to the internet to use Google Calendar Sync" when trying to sync with Outlook.  I went through all help forums on Google's side [no help yet] and decided to investigate within Outlook [I still use Outlook 2003 under Win XP SP2 on this machine, but this solution may work for other setups, and for those, you'll just have to find where Microsoft hid/buried this setting].

Problem solved...(at least for me). Problem [setting change] was on Microsoft's side, not on Google's side.  The problem is with how Outlook handles information requests-using the "Com" "Add-in" provided by Google.  The Sync Add-in simply needs to be activated on Outlook "startup" instead of "on demand".  Even when set to run on startup, Outlook sometimes forgets to do so, and the Sync software probably thinks it can't access a network because it's not even able to get as far as getting access to your data.  But to just get it working, try [two steps]:

1.  In Outlook 2003, go to Tools --  Options -- [ Other ] tab, [ Advanced ] button, [ COM Add-ins ] button.
Your Google Calendar Sync COM Add In will be listed here, simply check the box to enable; click Apply, OK, OK, etc.
2.  Go to the Google Calendar Icon in the Taskbar, Right-Click to Sync, and watch it now work.  
Your Google Calendar Sync Com Add-in must be listed in Outlook's COM Add Ins section to work [if it isn't, the Google Calendar Sync software probably requires re-installation, which should not affect either Calendar, but might make it work].

Good luck)


Is there an other solution that might help???I am experiencing the same problem and can't get rid of it. It use to work perfect. For some reason (might be some silent update or so) it now stopped working and gives me the same error message:
"Please connect to the
internet to use Goggle Calendar sync?"
Please let me know if you found an answer..!

Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again DroidPhone 7/23/10 6:11 AM
Hello all,

I also faced your issue with my settings: Win XP SP2 + Outlook 2007 @ office.
I just tried something few minutes ago that has solved my pb (after many trials thanks to the post upper):
I enabled
[X] Check for publisher's certificate revocation
[X] Check for Server certificate revocation
and force the sync : ever failed

then
I disabled

[  ] Check for publisher's certificate revocation
[  ] Check for Server certificate revocation

and now it works...

Another detail, I made a reset of IE several minutes before but with no success...

Hope that will help !!!



Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again igravanis 7/30/10 2:56 AM
Since I tried all registry tweaks on how Google Calendar Sync loads, resetting proxy settings on all of the installed browsers, uninstalling & then installing again the Sync app, tried to use the ICAL address to share my google calendar into my outlook as a temp bypass of the problem with the popup:

 "please connect to the internet to use goolge calendar sync"

 I only managed to solve the issue in one way (and reproduced it several times to be sure it wasn't just luck).

 >>> This is one Windows 7 Home Premium 64bit & Office 2007 SP2 <<<

 1) Uninstall Google Calendar Sync.
 2) Set all your browsers -in my case Chrome, Firefox, IE 32bit, IE64- to the equivalent of 'Autodetect Proxy settings' (yes you need to set both 32 & 64 bit IE versions!?)
 3) Install Google Calendar Sync again.
 4) Reboot (probably unnecessary but it's a practice I follow with Wintel setups)

 All should be back to normal, syncing along between your Outlook and your Google Calendars.

 Hope my 2c helped someone.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again 157Frog 8/6/10 4:54 AM
Thought I would add a bit here as I managed to get it to work.  :D
 
I read a million different posts on this and tried everything from Outlook com settings, IE advance settings, IE connection settings and running monitoring tools etc etc nothing seemed to work.  I have google calendar sync running on 2 PC's First is XP sp3, outlook 2003 on a coporate network (that I administer) the second is win7 and outlook 2007 on a home broadband.  After rebuilding my PC (so it was getting slow) suddenly the GCS stopped working with the connect ot the internet message.  Then when I cam in to work it stopped there also... very confused as both entirly different pc's in now way connected and its stopped on both... Eventually after days and DAYS of working on it I tried uninstalling IE8 on my work PC and bang!! it worked!!!!
 
Now of course I have been tweaking all over the place so just to let you all know I have done roughly not that you need to do this but nice to have some background....
On the XP PC:
- Ticked the COM addin in outlook, then closed outlook (as it would freeze GCS) then killed outlook in task manager
- Turned on Auto detect tick box in IE connection setting (no proxy also)
- Reset IE settings from the advanced tab
- unticked the security options in the IE advanced Tab to do with certificate revocation
- installed Firefox
- Unistalled IE8 down to IE6
 
On the Win7 PC:
- Ticked the COM addin in outlook, then closed outlook (as it would freeze GCS) then killed outlook in task manager
- Turned on Auto detect tick box in IE connection setting (no proxy also)
- Reset IE settings from the advanced tab
- changed the running of GCS to compatability mode of Vista.  (dont forget to kill GCS first then change and then load it after) This seemed to work until i rebooted my PC again
- yet to uninstall IE 8 and go down to either 6 or 7 then continue to use firefox on my home PC.
 
 
My next test is to put on IE7 as I'm sure I used to be on that but later perhaps lol
 
Good luck
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again tacosandcerveza 9/29/10 6:46 PM
This answer helped me:

I also experience the same problem, but it was solved by reset IE setting.
Go IE -> internet option - > advance -> reset default setting.
I wonder if i need to remove IE as from time to time it alter my internet connection

(kindly note i have not been using IE for several months after chrome released).
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Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again j.bormolini 11/1/10 4:13 PM
I think I fixed the "please connect to the internet to use google calendar sync" error by enabling "Use SSL 2.0" in "Internet Options" (from Internet Explorer->Tools->Internet Options->Advanced). I already had TLS 1.0 and SSL 3.0 checked. Now it works for me even after disabling "Use SSL 2.0".

I am using GCS through a proxy (no public dns except through proxy) with Outlook 2007, Windows XP SP3, and Internet Explorer 8. I had examined the output from Wireshark and saw a TLS connection negotiated, but I don't know how to interpret the results. I saw another post (http://www.google.com/support/forum/p/Calendar/thread?tid=3459eddb01a86d4f&hl=en) from tfrdofa1 that hinted at the SSL settings and now here we are...

I had tried many combinations of enabling/disabling the COM add-in from Outlook's "Trust Center" menu and resetting "Internet Options" before. Weird...
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again raydenl 11/7/10 4:47 PM
had the same error msg - checked ie7 advanced settings, TLS 1.0 was unchecked (SSL 2.0 & SSL 3.0 were checked), so I checked TLS 1.0 and now it works!!!
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again chignett 11/10/10 4:15 AM
Using Outlook 2010 and Chrome (but with IE8 installed and barely used) under Windows 7 32bit.

Solution was full reset of IE settings including deletion of personal settings and data.

Interestingly I noted that "Office Help" also thought I was offline, as did Outlook 2010 RSS feeds which all came through in a torrent the moment I reset IE.  Does Microsoft realise the problems that IE settings are causing even to its own software
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again JimTheFrog 11/15/10 1:10 AM
Aha! I had same problem. GCS used to work, then one day stopped. I tried clearing my calendar, which didn't work, but based on recent posts I tried going into Internet settings and turned on "Use SSL 2.0" ("Use SSL 3.0" was already checked). That seems to have fixed it.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Simons202 11/23/10 6:12 AM
gtamanini's recommendation worked for me, only had to to uncheck the one box, "check for publisher's certificate revocation" - bam, worked immediately thereafter (after restarting the then crashing Outlook and GCS).
Thanks, gtamanini!
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again GWArne 12/3/10 3:05 AM
This worked for me:
 
Open Internet Explorer, go Tools, Internet Option and choose Advanced.
Look for the section/group "Security" and uncheck the following two options:
 
[  ] Check for publisher's certificate revocation
[  ] Check for Server certificate revocation
 
(IE7 with proxy and WIN XP) 
 
 
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again rjl-man 12/28/10 3:31 PM
Outlook 2007 fix that worked for me.

You need to tell Outlook (again) that the Google Sync application is a trusted application within the Microsoft Outlook space. To do this you need to follow these instructions.

Go to the menu option: Tools - Trust Center
Then click on Add-ins

Under the "Inactive Applications Add-ins" highlight Google Calendar Sync
On the bottom click the GO button to Manage the COM Add-ins

Check the checkbox for Google Calendar Sync and click OK.

You should be able to right-click on Google Calendar and force a sync now.

Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again forester08 1/11/11 7:27 AM
thanks rjl-man,
your Outlook 2007 fix works perfect for me.
In the german Version the Trust Center is called: Vertrauensstellunggscenter
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again bunnco 3/27/11 1:27 PM
I'm using Windows7 64-bit and Outlook2010.  Driod Phone's solution worked for me.



DroidPhone
Level 1
7/23/10
Hello all,

I also faced your issue with my settings: Win XP SP2 + Outlook 2007 @ office.
I just tried something few minutes ago that has solved my pb (after many trials thanks to the post upper):
I enabled 
[X] Check for publisher's certificate revocation
[X] Check for Server certificate revocation
and force the sync : ever failed

then
I disabled
[  ] Check for publisher's certificate revocation
[  ] Check for Server certificate revocation

and now it works...

Another detail, I made a reset of IE several minutes before but with no success...

Hope that will help !!!
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again ajdiepen 4/7/11 6:49 AM
I have had the same problem with Win 7 64-bit and office 2010, it was working for awhile and then just stopped.  This is with my work computer and I am going through a proxy.

If I enabled the ad-on in outlook like was recommended it would lock up my outlook and nothing would sync (I even let it go over a weekend).

I updated to the latest version 9.4.0 with no change.

Last night I took my laptop home, and it synced fine when I was not going through a proxy.  Now I am back at work and on the proxy and it is still syncing fine......odd.....
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again munozem 4/8/11 7:13 AM
For Outlook 2007 the instructions to fix this are:  click "Tools-->Trust Center--Add-ins", then select "COM Add-ins" in the "Manage" box (at the bottom) and click "Go".  It'll take you to a list of your add-ins, make sure the box is checked next to Google Calendar Sync, then click "OK".
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again jon_h 6/24/11 4:10 AM
Brand new work machine with Win7 Pro 64, Outlook2007 and GCS failed to work until IE->tools->Internet Options->Advanced->Security sub section "Check for server certificate revocation" was unselected. I was receiving the 'please connect to the internet' error, and Outlook became unresponsive/hung if I tried the Tools->Trust Centre fix of promoting GCS to a preloaded add-in.

I'm behind a firewall and have all browsers configured to automatically configure the proxy settings. I also enabled SSL2.0 and unselected 'check for publishers certificate revocation' for it to work too, but I can disable and re-select them, respectively, and it still works. My first sync (2-way) was done without Outlook running.

A quick check on my previous work machine confirms that it also had server certificate checking disabled too, though it was provided configured that way.

Thanks to all those who suggested fixes - I can't function without this working anymore!

Cheers, Jon.



Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again ericbenchimol 7/7/11 12:12 PM
I experienced this for the first time today - restarting didn't help, nor did disconnecting from my ethernet network and reconnecting.  In fact, the below tip fixed the problem!  Thanks tacosandcerveza!

tacosandcerveza
Level 1
9/29/10
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again GWArne 7/12/11 12:47 AM
Hey,
for me the combination of this worked:
 
1. Open Internet Explorer, go Tools, Internet Option and choose Advanced.
Look for the section/group "Security" and uncheck the following two options:
 
[  ] Check for publisher's certificate revocation
[  ] Check for Server certificate revocation
 
2. Open Outlook 2007/2010, go to TOOLS - Addins
   At the bottom of the page, select COM Addins and click GO
   In the PopUp, select the box of GCS and click OK.
 
Good Luck
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again makum102 9/14/11 12:29 PM
After trying all of the above i found that simply clicking FILE / WORK OFFLINE in Outlook (2007) then unticking it again worked immediatly. No reboots, no uninstall just as as simple as that :-)
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again payntedrose 11/28/11 3:01 PM
I am using XP with Outloo 2007.  The calendar was syncing fine until about a month ago.  Now I get the 2016 every day.  I have tried all the suggested fixes I could find hee.  Does anyone have any suggestions?
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Biebel 12/7/11 8:35 AM
IE9: Try going to Internet Options, Advanced, and uncheck “Check for publishers certificate revocation”.
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again GeorgeKalogeris 1/7/12 2:39 AM
gtamanini thanks a lot, you saved my time!!!!

""
Open Internet Explorer, go Tools, Internet Option and choose Advanced.
Look for the section/group "Security" and uncheck the following two options:
 
[  ] Check for publisher's certificate revocation
[  ] Check for Server certificate revocation
 
After doing this, restart it all: Outlook, Internet Explorer and Google Calendar Sync.
""

Tron1978 1/12/12 7:52 AM <This message has been deleted.>
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again mirjafor 1/12/12 11:45 AM
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again cy.shimizu 7/18/12 6:27 PM
Thank you, thank you, thank you.

I received a new PC at work today, and, while calendar sync worked on my old computer, it broke on my new computer. This fixed it!
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Susan Gregory 10/24/12 6:59 AM
Thanks very much for posting this.   I just had this problem and it was resolved by following your advice.  I also use Chrome mainly, however some links/sites favour IE so I have to use it sometimes.  
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Jonno_in_Bondi 11/4/12 8:22 PM
@gtamanini: Thank you so much for your post. I have been trying for WEEKS to get around this issue!! :-)
Re: Please connect to the internet to use Google Calendar Sync - This is an old problem and seems to have cropped up again Paweł Zboralski 12/5/12 10:27 AM
Thanks bo-Rolf!!!

F***ing PROXY!! I am not using IE almost anywhere, and had left some experimental proxy settings weeks ago until realised my calendar ain't syncin' :)

Thank a lot again.
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