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

View products that this article applies to.

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 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
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

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Keywords: kbqfe, kbfix, kbnotautohotfix, kbexpertiseinter, kbbug, kbsurveynew, kb

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Article Info
Article ID : 2655007
Revision : 1
Created on : 1/7/2017
Published on : 1/11/2012
Exists online : False
Views : 257