Hi,
        Have you tried using old auth. If not here is how you do it.

On the client server,
>nsradmin -p nsrexecd
nsradmin> . type: nsrla
nsradmin> update auth methods: "0.0.0.0/0,oldauth"

once done. Try a backup again.

Rovin D'Souza 
rovinabi AT gmail DOT com
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of STANLEY R. HORWITZ
Sent: Saturday, August 21, 2010 1:52 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Authentication failed error

I am in the process of phasing out one NetWorker server in favor of
another.

One of the clients on the old NetWorker server that needs to be phased
out simply refuses to back up to the new server. The client is Solaris
AMD with NetWorker 7.5.1 client and the server I want to back up to is a
Red Hat Linux box with NetWorker server 7.5.3 on it. The client in
question has two network drops. When I try to use the second drop (which
is on the same side as the firewall as the new NetWorker server), I get
nowhere with trying to back it up. Searching PowerLink has not been
helpful. 

The error I get is ...

39078:savefs: RPC error: Authentication failed or no valid
authentication methods supported by both client and server

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