You must update the media server’s DB2 servers and authentication credentials list if the fully qualified domain name or the logon account name changes. Make the same changes on the DB2 server by using the Remote Agent Utility to configure instance information and database access.
The logon account name must have administrative rights to the DB2 server. If the user name is incorrect or is not provided, or if it does not have administrative rights, then you cannot perform DB2 backup or restore operations to that computer.
See Deleting information about DB2 servers from the media server’s list of authentication credentials.
More Information
Configuring the DB2 Agent on Windows computers
Adding information about DB2 servers to the media server’s authentication credentials list