iOS 6.1.2 fixes Exchange calendar sync issue

After many reports of problems with iOS 6.1 for Apple devices, with synchronizing calendar mailbox located on the Exchange server, Apple has finally released a new version of iOS 6.1.2.

We wrote about it here:

Devices with iOS 6.1 cause Exchange excessive transaction log growth


On website Support Apple we can read that, iOS version 6.1.2 improves error handling Exchange calendar, which could lead to increased activity in the network (synchronization), and reduced battery life.




This description is very superficial and does not mention that the “increased network activity” caused a rapid increase Exchange Transaction Logs that could cause dismount databases with mailboxes.

However it’s good that Apple finally noted that this problem occurred.

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IOS6 and Exchange meeting hijacking – calendar issues


Few days ago, when Apple released iOS6 we informed you about IOS6 and Exchange problems:
Exchange ActiveSync problems after upgrading IPhone or IPad to iOS6

After recent release of iOS6 Microsoft noticed increased support calls due to meetings having the owner of the meeting changed – meeting “hijacking”.
Most instances reported to Microsoft to date involve users with delegates who first open a meeting request in Outlook and then act on that same meeting in iOS.

iOS6 take ownership of meetings

Microsoft discussed this issue with Apple and will let as know when problem will be resolved.

Right now Microsoft has soem recommendations to offer a few migitation options:

  • Tell users not to take action on calendars on iOS We’re not seeing this particular issue if users don’t take action on their calendar items (for example, accept, delete or change meetings).
  • Switch iOS users to POP3/IMAP4 Another option is to switch users over to POP/IMAP connections. This will remove calendar and contacts functionality while allowing users to still use email (though the email may shift to pull from push while using these protocols) Continue reading

Exchange ActiveSync problems after upgrading IPhone or IPad to iOS6


Lot of users reports problems with Exchange ActiveSync after upgrading IPhone or IPad to iOS6.

If you have IPhone or IPad and you upgrade your device to iOS 6, then if you want to create new ActiveSync profile on your device it fail.
The new iOS 6 has problem with populate all fields required for automatic profiles setup.

But if you already have a ActiveSync profile on your IPhone/IPad and then upgrade to iOS 6, everything works fine.

There is also another bug iOS6 with Exchange meeting invitations.

The issue appear when user with iOS 6 decline a meeting invitation.
After user decline, iOS 6 is sending meeting cancellation notices to the entire distribution list, what causes canceling the invitation for all attendees.

So users with iOS 6 are being asked no to accept or decline calendar appointments until the problem has been resolved.

Some companies are requesting theirs emloyees not upgrade to iOS 6 until a bug with Microsoft Exchange meetings invitations will be fixed.