Symptoms
The Firewall service (Wspsrv.exe) in Microsoft Threat Management Gateway (TMG) 2010 may crash intermittently when the DiffServ filter is enabled.
Resolution
To resolve this problem, install Rollup 5Â for Forefront Threat Management Gateway 2010 Service Pack 2.
Workaround
To work around this problem, disable the DiffServ filter at the array level.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology that Microsoft uses to describe software updates.
