Article ID: 983296 - View products that this article applies to.
Microsoft Exchange ActiveSync crashes on a Microsoft Exchange Server 2007 server. Therefore, the client synchronization is unavailable. Additionally, you find the following event in the Application log:
When this problem occurs, if you try to run the Test-ActivesyncConnectivity Cmdlet in Exchange Management Shell, you may receive the following error message:
[System.Net.WebException]: The remote server returned an error: (503) Server Unavailable.
To resolve this problem, install the following update rollup:
(https://support.microsoft.com/kb/2279665/ )Description of Update Rollup 1 for Exchange Server 2007 Service Pack 3
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about the Test-ActivesyncConnectivity Cmdlet, visit the following Microsoft website:
General information about the Test-ActivesyncConnectivity Cmdlet
Article ID: 983296 - Last Review: September 9, 2010 - Revision: 2.0