FIX: ActiveSync device unresponsive until sync process is complete in an Exchange Server environment

Applies to: Exchange Server 2013 Enterprise


In a Microsoft Exchange Server 2013 environment, when you try to sync your email messages on an ActiveSync device, the device may receive several Ping.FHSyncRequired replies several times a day. This causes the device to become unresponsive until the sync process is complete.


This issue occurs when a non-IPM folder isn't filtered correctly during the ActiveSync process.

Cumulative update information

For Exchange Server 2013

To resolve this issue, install Cumulative Update 15 for Exchange Server 2013 or a later cumulative update for Exchange Server 2013.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


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