DOCUMENT:Q318912 17-APR-2002 [winnt] TITLE :Cannot Connect to Network After Upgrade to Windows NT 4.0 SP6a PRODUCT :Microsoft Windows NT PROD/VER::4.0 SP6a OPER/SYS: KEYWORDS:kbenv kbhw kbnetwork kbtool ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Workstation version 4.0 SP6a ------------------------------------------------------------------------------- SYMPTOMS ======== After you apply Windows NT 4.0 Service Pack 6a (SP6a) to your computer that has a 3COM 90x network adapter, your network adapter may lose network connectivity. CAUSE ===== This issue may be caused if you are using an network adapter driver that is not completely compatible with Windows NT 4.0 SP6a. RESOLUTION ========== To resolve this issue, contact 3COM to inquire about the availability of an updated network adapter driver for your 3COM 90x network adapter. For information about how to do so, please view the following 3COM Web site: http://www.3com.com The third-party contact information included in this article is provided to help you find the technical support you need. This contact information is subject to change without notice. Microsoft in no way guarantees the accuracy of this third-party contact information. Additional query words: ====================================================================== Keywords : kbenv kbhw kbnetwork kbtool Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400search kbWinNT400search kbWinNTW400SP6a Version : :4.0 SP6a Issue type : kbprb ============================================================================= 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.