KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q103942: SNA Server Identifies Netflex Adapter as Ethernet

Article: Q103942
Product(s): Microsoft SNA Server
Version(s): WINDOWS:2.0,2.1
Operating System(s): 
Keyword(s): kbhw kbHardware
Last Modified: 24-JUL-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft SNA Server, versions 2.0, 2.1 
-------------------------------------------------------------------------------


SYMPTOMS
========

After you install and configure an SNA Server 802.2 DLC link service and connect
a COMPAQ Netflex adapter, the SNA Server Admin program shows the 802.2
connection as Ethernet, even though the Netflex adapter is Token Ring. This is a
cosmetic problem only because the Netflex adapter automatically detects the
media type and any network software (including SNA Server) will continue to work
correctly.

CAUSE
=====

After installation, the Netflx02 registry entry for MediaType is always set to 1
(Ethernet). This value is then used by SNA Server setup (and passed to the SNA
Admin program) to indicate the media type of the 802.2 link.

RESOLUTION
==========

There are two workarounds to this problem:

WARNING: Using Registry Editor incorrectly can cause serious, system-wide
problems that may require you to reinstall Windows NT to correct them. Microsoft
cannot guarantee that any problems resulting from the use of Registry Editor can
be solved. Use this tool at your own risk.

- Before you run SNA Server Setup to install an 802.2 DLC link service, run
  REGEDT32 and modify the following registry setting:
  1. Go to HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/
     Netflx02/Parameters/MediaType.

  2. Change MediaType from 1 (Ethernet) to 0 (Token Ring).

  SNA Server Setup will properly detect the Netflex adapter as a Token Ring.

  -or-

- If the SNA Server configuration file already includes an Ethernet connection
  that should be Token Ring:
  1. Using SNA Admin, delete any erroneous Ethernet 802.2 connections from the
     configuration file.

  2. Using REGEDT32, modify the following registry setting:
     a. Go to HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/
        &lt;SNADLC1&gt;/Parameters/ExtraParameters/MACType.

     b. Change MACType from 1 (Ethernet) to 0 (Token Ring) (where
        &lt;SNADLC1&gt; is the name of the 802.2 link service specified
        during SNA Server setup, which is using AdapterName of
        \Device\NETFLX02).

     c. Rerun SNA Admin, remove the old Ethernet connection and re-add a new
        802.2 connection, which will now appear as Token Ring.


Additional query words: prodsna

======================================================================
Keywords          : kbhw kbHardware 
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ200 kbSNAServ210
Version           : WINDOWS:2.0,2.1

=============================================================================

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.