FIX: The BizTalk Server 2006 R2 FTP adapter randomly stops retrieving files from an FTP server until you restart the BizTalk host instance

In Microsoft BizTalk Server 2006 R2, you use an FTP adapter that connects to an FTP server to retrieve some files. You may find that the FTP receive location randomly stops retrieving files. When this occurs, you do not receive an error message or a warning message in the Application log. Additionally, the FTP receive location does not respond. To make the FTP receive location work again, you have to restart BizTalk host instance.

Note If you use a network monitor tool, such as Network Monitor, to monitor the traffic between BizTalk Server and the FTP Server, you find that no packets are sent to the FTP Server.

This problem occurs because a deadlock occurs in the FTP adapter.

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

You must have Microsoft BizTalk Server 2006 R2 installed to apply this hotfix.

Restart requirement

You do not have to restart the computer after you apply this hotfix. However, you must restart the BizTalk Server Application service.

Hotfix replacement information

This hotfix does not replace a previously released 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.Note Because of file dependencies, the most recent hotfix that contains these files may also contain additional files.

To work around this issue, restart the BizTalk host instance.

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, click the following article number to view the article in the Microsoft Knowledge Base: