Article ID: 2963811 - View products that this article applies to.
The Firewall service (Wspsrv.exe) in Microsoft Threat Management Gateway (TMG) 2010 may crash intermittently when the DiffServ filter is enabled.
To resolve this problem, install Rollup 5
(http://support.microsoft.com/kb/2954173/ )for Forefront Threat Management Gateway 2010 Service Pack 2.
To work around this problem, disable the DiffServ filter at the array level.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology
(http://support.microsoft.com/kb/824684/ )that Microsoft uses to describe software updates.