On a server S1 (novell 6.0 servicepack 5) I have groupwise 6.5 sp 6

On another server S2 (with novell 6.0 sp5) I have brightstor arcserve 9.x.

From brightstor arcserve manager I can't see the system groupwise because
I have this error: "failed to login the the agent".

what can I do on the server S2 so as to see the system of groupwise that
is on the serveur S1 ?

Perhaps the problem is GWTSA.
But how I must set up the file GWTSA.NCF on server S1 and on the server

thanks for all