The Windows 95 Driver
=====================
                                               LSS 5.0(0), August 1996
                                               -----------------------

Summary
-------

This file describes advanced configuration and troubleshooting
of the MDGMPORT.SYS driver under Windows95.

  
Section 1) Advanced Configuration
---------------------------------

If required, there are a number of advanced configuration options  for 
Madge Smart adapters that you can set. To do this, choose the Networks 
option from the Control panel. Highlight the Madge  Smart  adapter  in 
the components list select Properties, then click on Advanced.

You  will  see  a  list  of  options that you can set. The options are 
described below.  Once you have finished setting option  click  on  OK 
and then again on OK in the Networks dialogue box.

Options:

Force 16Mbits
-------------
The token-ring  speed  the  adapter works at is normally configured by
using either the "Madge Wizard" utility to program the adapter, or the
DOS TRCFGC.EXE utility to program the adapter,  or by setting switches
on an older adapter.   This  option allows you to force the adapter to
work at 16 Mbps.

Force 4Mbits
------------
The token-ring  speed  the adapter  works at is normally configured by
using either the "Madge Wizard" utility to program the adapter, or the
DOS TRCFGC.EXE utility to program the adapter,  or by setting switches
on an older adapter.   This  option allows you to force the adapter to
work at 4 Mbps.

LAA
---
Normally  a  token-ring  adapter uses an address that is stored on the
adapter.  You  may set a different, locally administered address, with
this  option. The address must be a 12 digit hexadecimal number in the 
range 400000000000 to 7fffffffffff.


Maximum Frame Size
------------------
This option allows you to set the maximum sized frame that the adapter
will send or receive.


Transfer Type
-------------
On  some  adapters it is possible to use one of several different ways
of transferring data between the computer and the adapter. This option 
allows you to choose which method to use.


Force 16 Bit PIO
----------------
Normally  when  PIO  is  chosen  as  the transfer method MDGMPORT will 
attempt  to  use  32bit  programmed  I/O on adapters that support this 
mode. On some old or out of specification computers you may experience
problems  with  32bit PIO. This option allows you to force MDGMPORT to 
use 16 bit programmed I/O.


Alternate
---------
Some computers have slightly different bus timings to most others.  If
you  experience any problems with a Smart 16 Ringnode try setting this 
flag to "Yes" so that the Smart 16 Ringnode knows to use the different 
timing scheme.


Watchdog
--------
Normally  MDGMPORT  closes down a Smart Ringnode when instructed to do 
so  by  the  operating  system. Under almost all circumstances this is 
the  correct  behaviour.  However, if  the  computer should "hang" the 
Smart  Ringnode  will not be closed down until the computer is powered 
off  or  hard  reset.  To  get  around  this  problem  insert the word 
"Watchdog" into the registry and give it a non-zero value. This causes 
the Smart Ringnode to automatically closedown if the computer does not 
respond  for the specified number of seconds. A value of 15 seconds is 
recommended.


Section 2) Troubleshooting
--------------------------
If  you  start  Windows95 and a message appears saying that your Madge
Ringnode  is  not  working  then  you  must start an MSDOS session and 
enter the command:

    TYPE C:\WINDOWS\NDISLOG.TXT

Where C:\WINDOWS is the directory in which you have installed
Windows95. You will see some text like:

Madge Smart ???? Ringnode (0001). Error Code = AAAAAAAAAA, ....

The file ERRORS.TXT explains what each value of AAAAAAAAAA means.


Section 3) Hardware Initialization Error Codes
----------------------------------------------

If  the  adapter  fails  to start because of a hardware initialization
problem.  Then  the  PP and QQ values can be used to determine why the 
hardware failed to initialize.

Some  of  the  common  errors are explained in the file ERRORS.TXT. If 
the  QQ  displayed  in  your  installation  does  not match any of the 
values  listed  in  ERRORS.TXT, contact MADGE technical support. Quote 
the values for PP and QQ.


                      **** End of WIN95.TXT ****

