NetBackup Status Code 59

Every now and then some of my Netbackup jobs end with status code 59 which means that the Netbackup master or Media server is not in the client Server allow list.  This usually happens after an Agent upgrade which not a big issue, but annoying none the less.

Message: access to the client was not allowed
Explanation: The master or the media server tries to access the client, but the client does not recognize the server as a valid server.
For the Enterprise Vault Agent: The names of all of the media servers among the Enterprise Vault servers are not specified in the client configuration.
Recommended Action: Do the following, as appropriate:
•    If the server is a valid server, verify that it is in the server list on the client. If necessary add it as follows:
•    1. Open the Backup Archive and Restore Utility on the Windows Client.
•    2. Select File >Specify NetBackup Machines and Policy Type
•    3. On the Specify NetBackup Machines  and Policy Type dialog opens Select Edit Server list and type in the name of Netbackup master or media server that will backup the client up..

Update: I've not had a chance to try this fix but it seems related.  From Symantec How TO articles. 

bpsetconfig

I have also seen this fix for status code (46) I've seen the technote but do not have the link. 
From the Netbackup OppsCenter Help Menu