DOCUMENT:Q163264 13-JUN-2001 [sna] TITLE :APPC Password Substitution Fails Intermittently PRODUCT :Microsoft SNA Server PROD/VER:WINDOWS:2.11,2.11 SP1 OPER/SYS: KEYWORDS:kbnetworkkbbuglist ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft SNA Server, versions 2.11, 2.11 SP1 ------------------------------------------------------------------------------- SYMPTOMS ======== APPC password substitution fails intermittently. The APPC Password Substitution feature was added in SNA Server 2.11. CAUSE ===== The password substitution code in the APPC library occasionally generates an incorrect password token. The incorrect token causes conversation initiation to fail with a security error. Because the error occurrs very rarely, it is typically seen only in situations where a large number of conversations are started in a short time. For example, an ODBC application may generate thousands of queries an hour, and suddenly fail with a security error after two hours of execution. RESOLUTION ========== The SNA Server and SNA Server client APPC libraries have been updated to correct this problem. STATUS ====== Microsoft has confirmed this to be a problem in SNA Server versions 2.11 and 2.11SP1. This problem has been corrected in the latest U.S. service pack for SNA Server version 2.11. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C K REFERENCES ========== Additional query words: prodsna ====================================================================== Keywords : kbnetwork kbbuglist Technology : kbAudDeveloper kbSNAServSearch kbSNAServ211 kbSNAServ211SP1 Version : WINDOWS:2.11,2.11 SP1 Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.