FIX: DefaultAppPool may crash when you try to install Forefront UAG Service Pack 1 Update 1

Article ID: 2655007 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You have a server that is running Microsoft Forefront Unified Access Gateway (UAG) 2010 in an array that uses Network Load Balancing (NLB).
  • You try to install Forefront UAG Service Pack 1 Update 1 on the server.

In this scenario, when you select the array manager under Nodes in Array Monitor, the default application pool (DefaultAppPool) crashes.
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CAUSE

This issue occurs because the Forefront UAG array expects a certain parameter response from the array nodes when the array is enabled in Array Monitor. When this issue occurs, a NULL pointer is passed as a parameter because of a problem in the logic, and an exception occurs.
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RESOLUTION

To resolve this issue, install the rollup package that is described in the following Microsoft Knowledge Base article:
2647899
(http://support.microsoft.com/kb/2647899/ )
Rollup 1 for Forefront Unified Access Gateway (UAG) 2010 Service Pack 1 Update 1

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WORKAROUND

To work around this issue, upgrade the array nodes to the same build as the array manager before you continue with the installation of Service Pack 1 Update 1 on the server.
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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 how to install Service Pack 1 Update 1, visit the following Microsoft TechNet website:
Installing SP1 Update 1 on an array using NLB
(http://technet.microsoft.com/en-us/library/hh490316.aspx)
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: 2655007 - Last Review: January 11, 2012 - Revision: 1.0
APPLIES TO
  • Microsoft Forefront Unified Access Gateway 2010 Service Pack 1
  • Microsoft Forefront Unified Access Gateway 2010
Keywords: 
kbqfe kbfix kbexpertiseinter kbbug kbsurveynew KB2655007
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