SNA Server Identifies Netflex Adapter as Ethernet

 Last reviewed: April 18, 1997
Article ID: Q103942
The information in this article applies to:
  • Microsoft SNA Server for Windows NT, version 2.0

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/

             <SNADLC1>/Parameters/ExtraParameters/MACType.

      b. Change MACType from 1 (Ethernet) to 0 (Token Ring)
         (where <SNADLC1> 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.

    

	    
	
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Additional query words: prodsna
    
Keywords            : kbhw nthw
    
Version             : 2.0 3.1
    

    
    

    

    
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	Last reviewed:  April 18, 1997
	
    
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