Article ID: 2783631 - View products that this article applies to.
Consider the following scenario:
This issue occurs because the Windows Phone-based or Windows Mobile-based device does not provide the value for the User-Agent field. Therefore, Exchange ActiveSync incorrectly updates the field.
To resolve this issue, install the following update rollup:
(https://support.microsoft.com/kb/2746164/ )Description of Update Rollup 6 for Exchange Server 2010 Service Pack 2
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about a similar issue, click the following article number to view the article in the Microsoft Knowledge Base:
2678361For more information about the Get-ActiveSyncDeviceStatistics cmdlet, go to the following Microsoft website:
(https://support.microsoft.com/kb/2678361/ )The user-agent information about an Exchange ActiveSync device is not updated in an Exchange Server 2010 environment
General information about the Get-ActiveSyncDeviceStatistics cmdletFor more information about the User-Agent field, go to the following Microsoft website:
General information about Cross-Forest Availability for Exchange 2003 and for Exchange Server 2007For more information about Exchange ActiveSync, go to the following Microsoft website:
General information about Exchange ActiveSync
Article ID: 2783631 - Last Review: February 12, 2013 - Revision: 1.0