NetBackup Error 7640 Fix

Backups failing for only a specific host with the error 7640?  Here's how to fix that!

All of the following commands are to be performed on the client!

1. Run this command: 

   /usr/openv/netbackup/bin/bpclntcmd -pn -verbose -debug

2. If the error ends with "the peer host certificate cannot be verified," continue.
3. Stop the NetBackup service (reminder: on the client): 

   /usr/openv/netbackup/bin/goodies/netbackup stop

4. Start the NetBackup service: 

   /usr/openv/netbackup/bin/goodies/netbackup start

5. Recheck the status:

   /usr/openv/netbackup/bin/bpclntcmd -pn -verbose -debug

6. The certificate error should no longer be seen.
7. Retry the failed backup or wait for it to run again.