Thanks for the response.
But the windows firewall service is turned off on both servers. Though it might be possible that one or more of the needed ports might be blocked by a firewall defending the perimiter which I have no control over.
Do you know a way of testing to see if either of these guys can receive stuff over ports 137, 138, or 139?
Or might there be another cause for this communicaiton error?
Thanks
Joe