Since the beginning of march it could take a half hour before
a client can login. This problem can occur on any client.
My environment is Netware 5.1 SP8 and Novell client 4.91 with SP1.

I captured some of the communication between client and server with
I see a lot of messages about NCP en TCP regarding the client which cannot

The NCP messages talks about obtaining info for the client, enumerate
attributes and open or create with Op-Lock

The TCP messages talks about TCP segment of a reassembled PDU
and acknowledgements of tcp segments.

Using SP2 for the client does not help to solve this problem.