FIX: A "DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)" Stop error may occur on a server that is running Forefront Threat Management Gateway (TMG) 2010

Article ID: 2785800 - View products that this article applies to.
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Symptoms

A server that is running Microsoft Forefront Threat Management Gateway (TMG) 2010 may crash, and the following Stop error occurs:
DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
Arguments: Arg1: 000000000000002c, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, value 0 = read operation, 1 = write operation
Arg4: fffff8800473bad9, address which referenced memory
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Resolution

To resolve this problem, install the hotfix package that is described in the following Microsoft Knowledge Base article:
2735208
(http://support.microsoft.com/kb/2735208/ )
Rollup 3 for Forefront Threat Management Gateway (TMG) 2010 Service Pack 2

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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References

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684
(http://support.microsoft.com/kb/824684/ )
Description of the standard terminology that is used to describe Microsoft software updates

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Properties

Article ID: 2785800 - Last Review: January 10, 2013 - Revision: 2.0
Applies to
  • Microsoft Forefront Threat Management Gateway 2010 Service Pack 2, when used with:
    • Microsoft Forefront Threat Management Gateway 2010 Enterprise
    • Microsoft Forefront Threat Management Gateway 2010 Standard
Keywords: 
kbqfe kbfix kbexpertiseinter kbbug kbsurveynew KB2785800
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