Information Technology Blog

New iOS 6.1 Update Causing ‘Continuous Loop’ Issues for Devices Connected to Exchange Servers

If your iPhone or iPad is connected to Exchange Servers, there’s a good chance that you’ve noticed your calendar acting up since updating to iOS 6.1. The new update has been causing an overload on Exchange servers due to a bug in the software, known as a “continuous loop” bug.

According to Microsoft, when a user syncs a mailbox using an iOS 6.1-based device, a couple things happen:

  1. It causes an overload on the Exchange Server. More specifically, server resources are consumed, log growth becomes excessive, memory and CPU use may increase significantly, and server performance may be affected.
  2. Users are experiencing several errors. Some of these include multiple calendar events and responses showing up in user accounts, and notices such as “Cannot Get Mail,” or “The connection to the server failed.”

Apple and Microsoft are still investigating this issue and will post more information when it becomes available. In the meantime, whether you have upgraded to iOS 6.1 or not, we’ve compiled some of the suggested ways to troubleshoot this issue.

If You Have Not Upgraded to iOS 6.1

If you haven’t upgraded to iOS 6.1 yet, and sync your device to an Exchange Server, you can avoid these issues by choosing not to upgrade, until further notice.

If You Have Already Upgraded to iOS 6.1

If you have upgraded to iOS 6.1, you can try a series of simple suggested troubleshooting tricks, in hopes of solving your issue:

  1. Power your phone off and then back on again.
  2. Do not accept, decline or delete any calendar events from your phone. Instead, process all events from your computer until Apple releases a fix for this issue.
  3. Turn off calendar syncing on your phone until they release a patch to fix this issue.
  4. Contact your internal IT department for their preferred troubleshooting instructions, likely to include recreating the device partnership or blocking iOS 6.1 users from the ability to manage meetings with Exchange.
  5. Click here to learn about more in-depth workarounds to this iOS 6.1 issue.

We will post more information as it becomes available. In the meantime, if you have any questions at all, please feel free to contact one of our IT support professionals by calling 440-449-6800.

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