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After Service Pack 2 for Microsoft Forefront Unified Access Gateway 2010 is installed, the portal may intermittently become unresponsive to clients.


Forefront Unified Access Gateway makes LDAP calls to Active Directory when user authentication and group membership checks are performed. In certain scenarios, some of these calls may get stuck in an infinite wait state. Eventually, this problem could lead to a deadlock situation in the Forefront Unified Access Gateway environment.


This problem is fixed in the update that is described in Description of Rollup 1 for Forefront Unified Access Gateway 2010 Service Pack 3.


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


For more information about software update terminology, see Description of the standard terminology that is used to describe Microsoft software updates.

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