DOCUMENT:Q181721 10-AUG-2001 [crossnet] TITLE :XCON: Messages Not Delivered Over an Association PRODUCT :Windows for Workgroups and Windows NT Networking Issues PROD/VER:winnt:4.0,5.0,5.5 OPER/SYS: KEYWORDS:kbWinNT400sp4fix ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 4.0, 5.0, 5.5 - Microsoft Windows NT Server version 4.0 - Microsoft Windows NT Server version 4.0, Terminal Server Edition ------------------------------------------------------------------------------- SYMPTOMS ======== The Microsoft Exchange message transfer agent (MTA) has a backlog of messages (up to the default threshold) waiting to be delivered. The MTA makes an association with another LAN-MTA (RPC connection), but does not deliver mail over this connection. Various errors may appear in the applications event log concerning RPC problems. These may include the following events and other similar errors that indicate RPC problems: Event id = 9316 Category = Interface Source = MSExchangeMTA An RPC communications error occurred. No data was sent over the RPC connection. Locality table (LTAB) index: 53. Windows NT error: 1727. The MTA will attempt to recover the RPC connection. [BASE IL KERNEL 24 512] (12) Event id = 9277 Category = Interface Source = MSExchangeMTA The MTA has issued an RPC Cancel call for thread 1, Locality Table Index: 160, Time (ms): 1275740, Cancel result: 0 [SLPS100 MtaBind ncacn_ip_tcp:100.5.51.16[1911] BASE IL] (14) CAUSE ===== The Windows NT RPC component on the receiving computer puts the association in the wrong address space. Therefore, when the next bind arrives on the correct address, it cannot find the association and sends a Bind NAK. RESOLUTION ========== To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, please see the following article in the Microsoft Knowledge Base: Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack STATUS ====== Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4. MORE INFORMATION ================ The initiating MTA tries to send mail to the receiving MTA, but the receiving MTA does not believe it has an association with it because the RPC put the association in the wrong address. It will NAK the RPC Bind request. After the message threshold has been reached (default value is 50) on one of the MTAs, it will make a new association and begin delivering messages again. Additional query words: 4.00 5.00 5.50 RT-Turn-Please RT-Turn-Give ASB token give XADM ====================================================================== Keywords : kbWinNT400sp4fix Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbNTTermServ400 kbNTTermServSearch kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2 Version : winnt:4.0,5.0,5.5 Hardware : ALPHA x86 Issue type : kbbug 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.