Article ID: 947255 - View products that this article applies to.
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Consider the following scenario:
This problem occurs because the Microsoft Firewall service incorrectly handles IP address bindings. A site-to-site VPN connection may be lost and then re-created. However, ISA Server still uses the old IP address of the previous virtual network interface for the site-to-site VPN connection.
To resolve this problem, apply the hotfix rollup package that is described in the following Microsoft Knowledge Base article:
(https://support.microsoft.com/kb/947257/ )Description of the Internet Security and Acceleration (ISA) Server 2006 hotfix package: January 8, 2008
To work around this problem, restart the Microsoft Firewall service on the ISA Server 2006 computer.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 947255 - Last Review: January 15, 2015 - Revision: 1.3