The TCP session does not close until you run the "net session /d" command to delete the SMB session on the file server on a Windows Server 2003-based computer

On a Microsoft Windows Server 2003-based computer, you open files from the network. These files are still locked after you log off the client computer. If you examine the Transmission Control Protocol (TCP) sessions by using the netstat command, you see a TCP session that is similar to the following:The TCP session does not close until you run the net session /d command to delete the Server Message Block (SMB) session on the file server.

This issue occurs because of a problem in the Tcpip.sys file. This problem causes the TCP session to remain open.

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:

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

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 tool in Control Panel.
Windows Server 2003, x86-based versionsWindows Server 2003, Itanium-based versions

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
This problem was corrected in Microsoft Windows Server 2003 Service Pack 1.

For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base: