Server Publishing Rules Intermittently Fail

Server Publishing rules may stop working properly on your ISA Server-based computer. When this occurs, ISA Server may intermittently stop listening on various TCP ports that are configured for server publishing. This could happen to server-published ports like SMTP that is using port 25, POP3 that is using port 110, http port that is using 80 or any other port that is configured for server publishing.

When ISA Server stops listening on a port, that port is missing from the status list when you run the netstat -an command to show the status of all TCP and UDP ports that are active on the system.

This problem can occur because Winsock is unable to process certain error conditions that are returned by Accept.

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next ISA Server service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:

   Date         Time   Version      Size     File name
   ----------------------------------------------------
   Sep-23-2001  16:04  3.0.1200.70  292,112  Wspsrv.exe
				

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.