NetWorker Server Migration

Hi

I need to migrate NetWorker Server to new host. The problem is that during this migration the server name also changes. For example at the moment NetWorker Server name is networker.example.com and after the migration it will be backup.example.com. I have followed the EMC procedure how to do it, but after I renamed the OS name to correct one the NetWorker server did not start and I saw error NetWorker Name changed could not start. So do you have any suggestions how to do that?