DOCUMENT:Q131547 29-OCT-1999 [win3x] TITLE :NE2000 Network Adapter Driver Reports Incorrect MAC Address PRODUCT :Microsoft Windows 3.x Retail Product PROD/VER:WINDOWS:3.11 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows for Workgroups version 3.11 ------------------------------------------------------------------------------- SYMPTOMS ======== The network adapter driver reports an incorrect or duplicate MAC address. For example, an NE2000 adapter with a physical card address of 00001B4ADA42 reports the address as 000000001B1B. Other symptoms include errors relating to having duplicate MAC addresses on the network and not being validated on a domain. CAUSE ===== When you use the Windows for Workgroups NE2000 network adapter driver with a network adapter with the number 42 or 57 in the MAC address, the MAC address is reported incorrectly. This problem is not related to the network protocol or brand of network adapter in use. RESOLUTION ========== To resolve this problem, use either of the following methods: - Use a network adapter that does not contain the number 42 or 57 in the MAC address. - If you are using Novell NetWare, use an ODI MAC driver for the network adapter. MORE INFORMATION ================ Additional query words: 3.10 3.11 ub eagle ====================================================================== Keywords : Technology : kbAudDeveloper kbWFWSearch kbWFW311 Version : WINDOWS: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 1999.