DOCUMENT:Q234593 20-MAY-2002 [winnt] TITLE :WinNT 4.0 Tcpip.sys Hotfixes Dated 4/28/99 to 5/28/99 Replaced PRODUCT :Microsoft Windows NT PROD/VER:winnt:4.0 SP5 OPER/SYS: KEYWORDS:kbWinNT4sp6fix ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0, Terminal Server Edition - Microsoft Windows NT Server version 4.0 SP5 - Microsoft Windows NT Workstation version 4.0 SP5 - Microsoft Windows NT Server, Enterprise Edition version 4.0 SP5 ------------------------------------------------------------------------------- SYMPTOMS ======== Post-SP5 hotfixes for the Tcpip.sys driver dated April 28, 1999 to May 28, 1999 contain a regression that could cause your multiprocessor computer to stop responding (hang). CAUSE ===== This problem occurs because of changes made in earlier hotfixes included an error in locking code. This error can cause your multiprocessor computer to "deadlock" or hang. RESOLUTION ========== Windows NT Server or Workstation 4.0 ------------------------------------ To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to: - http://www.microsoft.com/Windows/ServicePacks/ -or- - Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web: http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS Windows NT Server 4.0, Terminal Server Edition ---------------------------------------------- To resolve this problem, obtain the latest service pack for 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 Server 4.0 Service Pack 6 and Windows NT Server 4.0, Terminal Server Edition Service Pack 6. MORE INFORMATION ================ These hotfix files should be replaced with the newer files. Affected hotfixes are described by the following articles: Q223450 TCP Initial Retransmission Timer Adjustment Added to Windows NT Q224585 TCB Hash Function Modified to Improve Network Performance Q230307 Slow Performance in TCP/IP When Reconnecting Q230381 TCP/IP Dead Gateway Detection May Not Work if ARP Cache Empty Q232512 TCP/IP May Retransmit Packets Prematurely Additional query words: multi processor multi-processor ====================================================================== Keywords : kbWinNT4sp6fix Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400search kbWinNT400search kbWinNTW400sp5 kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400sp5 kbWinNTS400sp5 kbWinNTS400search kbNTTermServ400 kbNTTermServSearch Version : winnt:4.0 SP5 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 2002.