ConfigMgr 2012 R2 SP1 CU1 - Hotfix for "Conditional Access is slow to unblock devices"

by Thomas Forsmark Sørensen 18. August 2015 21:31

Microsoft just released a new hotfix KB3079897 for ConfigMgr 2012 R2 SP1 CU1.

"Conditional Access is slow to unblock devices for email access in System Center Configuration Manager"

Symptoms

When you run Microsoft System Center 2012 R2 Configuration Manager Service Pack 1 or System Center 2012 Configuration Manager Service Pack 2 on a server, you may experience the following performance issue or race condition:•Performance issue

After Conditional Access is enabled and deployed, and devices are enrolled and compliant with the compliance policies that are deployed, performance tests reveal up to a 10-minute delay to unblock devices so that they start to receive email messages. The unblocking of devices occurs when compliance messages are received through a fast channel. This processing had dependencies that caused delays.

This update removes the dependencies on data and obtains this data from the fast compliance messages instead. This provides significant improvement in unblocking time. The unblocking time after the fix is typically less than 1 minute.

Race condition

If you set up on-premises Conditional Access during the Exchange Connector's full/delta sync, a race condition may occur in a rare scenario. This prevents the Conditional Access Policy from taking effect.

This issue occurs because hybrid conditional access may not be enabled during a full sync of the System Center Configuration Manager Exchange Connector. During the full sync, a shared SQL connection can sometimes prevent the Conditional Access Policy from writing against SQL.

This update locks the SQL connection during the enabling of Conditional Access

The hotfix can be requested here: KB3079897

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About Me

  

My name is Thomas Forsmark Sørensen.

I live in Odense in Denmark and work for Globeteam in Virum.

I am working as a Microsoft Infrastructure consultant with main focus on application and Operating System Deployment.

I work mostly with Microsoft System Center Configuration Manager 2012 R2 and MDT 2013, but I also work with other of Microsofts products. 

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