DOCUMENT:Q120576 17-DEC-2000 [win3x] TITLE :Logon and Connection Problems using 3Com Etherlink 16 Adapters PRODUCT :Microsoft Windows 3.x Retail Product PROD/VER::1.0,3.1,3.11 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows for Workgroups versions 1.0, 3.1, 3.11 ------------------------------------------------------------------------------- SYMPTOMS ======== You may experience intermittent network problems such as logon validation errors and network connection failures when running Windows for Workgroups with a 3Com Etherlink 16 (3C507) network adapter. CAUSE ===== These problems occur due to a problem with the 3C507 enhanced mode NDIS driver. WORKAROUND ========== To work around the problem, do the following: 1. Run 3C507.EXE from the floppy disk (EtherDisk) that comes with the network adapter and set the Data Mode to Standard. The default factory setting is Turbo. 2. Choose the Network Setup icon in the Network group. In the Network Driver dialog box, select the 3Com EtherLink 16 [NDIS2/NDIS3] driver. 3. Select Real Mode NDIS Driver for the driver type. Choose OK and reboot the workstation. STATUS ====== Microsoft has confirmed this to be a problem in Windows For Workgroups version 3.11. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available. Additional query words: wfw wfwg 3.11 ====================================================================== Keywords : Technology : kbAudDeveloper kbWFWSearch kbWFW310 kbWFW311 Version : :1.0,3.1,3.11 ============================================================================= 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.