You get a server error when you try to synchronize with Active Directory

Problem: In the Report Services control panel, when you go to synchronize data for report services, the following error displays: “The server is unwilling to process the request.” (KB-6350)

You also see a similar error in the report services log file. Here’s an example of what the error looks like:

[2015-08-21 10:53:25.714 +0800] Centrify.Report.Service.exe[3596,10] Error: SyncServer.DoSynchronization: Failure during synchronize domain a9f1r1.test, DC: a9d1-w2k12r2.a9f1r1.test.

[2015-08-21 10:53:25.714 +0800] Centrify.Report.Service.exe[3596,10] Error: SyncServer.DoSynchronization: Reason: The server is unwilling to process the request.

Explanation: The issue is due to insufficient memory on the domain controller. The domain controller is unable to allocate enough memory for Active Directory caching.

Solution: Adjust the memory allocated to the domain controller, according to Memory requirements.