DOCUMENT:Q120578 17-DEC-2000 [crossnet] TITLE :Duplicate IP Addresses Not Detected Correctly PRODUCT :Windows for Workgroups and Windows NT Networking Issues PROD/VER:3.11 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft TCP/IP-32 for Windows for Workgroups, version 3.11 ------------------------------------------------------------------------------- SYMPTOMS ======== Duplicate IP addresses are not handled properly by Microsoft TCP/IP-32. A newly started computer using an already used IP address will join the network successfully without correcting the duplication problem. Communication with either of the computers sharing the IP address is not reliable. If the first computer using the IP address has Microsoft TCP/IP- 32 or Windows NT 3.5, a notification message appears, but no further error handling occurs. STATUS ====== Microsoft has confirmed this to be a problem in Microsoft TCP/IP-32. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available. Additional query words: prodtcp32 wfw wfwg 1.0 WFWG WOLVERINE ====================================================================== Keywords : Technology : kbAudDeveloper kbTCPIPSearch kbZNotKeyword3 kbTCPIP311 Version : 3.11 ============================================================================= 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 2000.