Microsoft KB Archive/923339

= Client and router connections are dropped frequently when you use an IPsec tunnel on a Windows Server 2003 Service Pack 1-based server =

Article ID: 923339

Article Last Modified on 3/28/2007

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APPLIES TO


 * Microsoft Windows Server 2003 Service Pack 1

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SYMPTOMS
When you use an Internet Protocol security (IPsec) tunnel in Windows Server 2003 Service Pack 1 (SP1), client and router-to-router connections may be dropped frequently from the Windows Server 2003 SP1-based server. This issue may occur soon after the IPsec tunnel is established. Typically, this issue occurs within 5 to 6 minutes.



CAUSE
This issue occurs because the IPsec driver does not update the LastUsed timestamp for the IPsec tunnel in Windows Server 2003 SP1. This causes the connection to be dropped during IPsec Quick Mode (QM) renegotiation even though the tunnel is never idle.



Service pack information
To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

889100 How to obtain the latest service pack for Windows Server 2003

Prerequisites
To apply this hotfix, you must have Windows Server 2003 SP1 installed on the computer.

Restart information
You must restart your computer after you apply this hotfix.

Registry information
You do not have to change the registry.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

Hotfix file information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Server 2003, Itanium-based versions with Service Pack 1


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Microsoft Windows Server 2003 Service Pack 2.



MORE INFORMATION
For more information, 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

Keywords: kbwinserv2003sp2fix kbtshoot kbwinserv2003presp2fix kbexpertiseadvanced kbfix kbhotfixserver kbqfe kbpubtypekc KB923339

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