If you have a problem with the Oracle Agent, the following questions may help you solve the problem.

See What should I do if I get a message that an attempt by Backup Exec to change the state of the Oracle database timed out?.

See What should I do if a job continues to run on the media server even after it ends on the Oracle RMAN console?.

See The error "Unable to attach to a resource..." is displayed when Oracle instance information changes.

See What should I do if the error ORA-12546: TNS: Permission denied appears on the Linux computer where Oracle is installed?.