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You create a new connectivity verifier in Microsoft Internet Security and Acceleration (ISA) Server 2006. Or, you modify the parameters of an existing connectivity verifier in ISA Server 2006. However, the ISA Server Management snap-in stops responding (hangs).
Additionally, when you open the ISA Server Management snap-in again, you experience one of the following symptoms, depending on your circumstances:
The new connectivity verifier that you created is missing.
The changes that you made to the parameters of the existing connectivity verifier are discarded.
To resolve this problem, install the 926846 hotfix. For more information about this hotfix, click the following article number to view the article in the Microsoft Knowledge Base:
926846 Description of the ISA Server 2006 hotfix package that is dated October 23, 2006
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.