Microsoft KB Archive/262373

= Proxy Stops Listening for Server Proxy If AcceptEx Does Not Succeed with Error Code 64 =

Article ID: 262373

Article Last Modified on 10/19/2005

-

APPLIES TO


 * Microsoft Proxy Server 2.0 Standard Edition

-



This article was previously published under Q262373



SYMPTOMS
Proxy Server may unexpectedly stop listening on a port when it is performing a server proxy. For example, if it is performing a server proxy for Microsoft Exchange Server, the Proxy server may stop listening on port 25 or 110.



CAUSE
Some new network error codes have been added in Microsoft Windows 2000 to support Original Equipment Manufacturers (OEMs). Error code 64 (ERROR_NETNAME_DELETED) can occur if a client connects and then performs a disconnect (a three-way handshake, and then a reset from the client). The WinSock call to AcceptEx does not succeed because of this error code. When this occurs with Proxy Server, it terminates the session and calls the WinSock closesocket function. If Proxy Server is running on Windows 2000 and this behavior occurs, Proxy Server does not perform another WinSock AcceptEx call, causing it to stop listening on that port.

This behavior can also occur in Microsoft Windows NT 4.0, but error codes other than error code 64 are generated.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

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 usual 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     Filename    Platform -  05/18/2000  08:42:00PM  2.0.390.16   96,528  Wspsrv.exe  Intel 05/18/2000 08:40:58PM  2.0.390.16  173,328  Wspsrv.exe  Alpha



STATUS
Microsoft has confirmed that this is a problem in Proxy Server 2.0.

Keywords: kbbug kbfix kbqfe kbenv kbnetwork kbhotfixserver KB262373

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.