I recently upgraded our master server to netbackup 5.1mp5 on solaris. 
We moved a client to new hardware and instead of moving over the 
netbackup stuff we installed 5.1 client.

Backups fail, and i can't look at client properties in jnbSA because 
it times out. The firewall is open and both boxes can talk to each 
other on port 13782.

This client gets a quick "connection refused" from the master server 
when trying to telnet to the master on port 13782 but the firewall is 
open and there aren't tcp wrappers involved.

Is this VxSS related maybe?