Recently upgraded from MS SBS 2003 to MS SBS 2011 really without any major issues. I do have one user that is having issues sync'ing his calendar via his iPhone and iPad. He was having issues prior to the migration. The issues started when he recently went out of the country and changed the data plan while abroad. Once he returned, switched his account back...it would not sync email and/or calendar. Per Apple's recommendations, I went under General > Reset > Reset Network Settings, and everything appeared to be working correctly once the phone rebooted.
Post migration, email is sync'ing without any issues. Calendar has been problematic. Originally some of his weekly, annually reoccurring appointments-dates were all shifted around...the reminders where coming up 322+ days over due, 88 days, they would not dismiss to due to end times occurring before start times...etc. So I manually went into his calendar and deleted the items, and re-created them with the correct times/dates...now those issues appear to be cleared up.
HIs iPhone appears to be sync'ing fine, both the email and calendar...the iPad email is sync'ing fine, but the iPad calendar is just hard locked, you can't do anything. He took the iPad to the Apple Store...they cleared it, updated it, and re-enabled the account...and same thing...so it would appear that the issue is coming from the exchange server. I am not really seeing any issues in the event logs, they are fairly clear. The one thing I do see, is in the EMC under the users mobile phones the sync times appear to occur in the 'future'...all of the iPhones with the same "ID numbers"...here is what I am seeing:
Apple-iPad/702 500 iPad Monday, March 28, 2011 1:56:41 AM
Apple-iPhone2C1/803.1480001 iPhone Monday, March 28, 2011 12:11:19 AM
Apple-iPhone/704.11 iPhone Sunday, March 27, 2011 10:11:46 PM (correct)
There are two other IPhones that have the 2C1/80x.xxxxx and they have the incorrect time as well, but they haven't reported any sync'ing issues, right now the iPad is the only one that is locked up. As you can see from the info above, the iPhone that has the 704.11 has the correct time and date.
Anyone with any ideas...I was going to try to delete the mobile device from the user account, delete the account from the iPad...reset up the device...and see what happens. Currently I don't have the iPad in hand to test this...any ideas of where to look or settings to check would be greatly appreciated. Thanks again.