Hi Sam,
   I had a similar problem with a notes server running W2003.
I was using the tdp client for lotus notes.  My work around was to take a
second network interface
on the server and lock both the port and the client down to 100/full
duplex. This tdp client is the only one I
have to run on this second interface and it works fine now. I don't know
if you have a hdwe. second interface, but if you
do, try adding another ip address and give it a try...TSM allows for the
use of more then one hdwe.  interface...

At any rate kindly let me know what your resolution is as I'm
interested...

thx jimmyd

James Drozynski
IBM Pittsburgh Lab
11 Stanwix Street
Pittsburgh Pa. 15222
Tel:412-667-4421
Fax:412-667-6975
Tie:989-4421