I'll describe the symptoms, but I'm not sure where the problem really

After upgrading to NW Client 4.91, SP4, and installing NMAS on machines via
an image, the TechSup team attempts to login to all upgraded machines to
verify function. After logging into a number of them (no fixed, or
repeatable pattern) the following appears in a popup box:

"Novell Security Message: Connection to Server was Terminated. Try to
Connect Again." I can't find any reference to this message on the Novell

If a DIFFERENT User ID is used, the client logs in fine. If the SAME ID is
used repeatedly, this problem occurs. And to pre-empt, no, it is not a
"concurrent logins" issue.

Any ideas which direction to turn?