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Unreliable iCloud calendar sync

The calendar entries are synced to the "cloud", I can see it in the calendar Web-App, but can not get on the mobile devices (iPad & iPhone). The sync takes place after opening the iOS Calendar app, deactivate and activate the calender sync in the iCloud settings or after restart the iOS device. Using newest software Version on Mac (10.8.3) & iOS (6.1.3).

The problem does not always occur, but only sporadically. Any ideas?

Posted on Apr 30, 2013 2:38 AM

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3 replies

May 2, 2013 11:17 AM in response to nobbse

Hey nobbse,



I understand you are having issues with iCloud Calendar on your iOS devices, but it seems to be working correctly on iCloud.com.


I would run through the following article, specifically the section titled "Troubleshooting iOS devices":


iCloud: Troubleshooting iCloud Calendar

http://support.apple.com/kb/TS3999


It is important that we want to test to see if the issue is resolved after each troubleshooting step.



Thanks,


Matt M.

May 22, 2013 1:29 PM in response to matt00

I did every solution step from that support document multiple times during the last 3 weeks without success - the problem persists. After following the proposed solutions, a synchronization occurs only ONCE. After that it continues to be unstable.


It looks as if the push updates for calendar entries are not working reliably. I can even reproduce the problem with another iCloud account and a different iOS device. Could there possibly be a connection to the deactivation of push email for iCloud in Germany? (see http://support.apple.com/kb/TS4208)

Unreliable iCloud calendar sync

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