0xe000846b - The resource could not be backed up because an error occurred while connecting to the Agent for Windows. The correct version of the Agent for Windows must be running on the target computer.
The possible cause of this error is Windows Firewall. Beremote debug log shows:
BEREMOTE: [07/31/13 10:53:21] [5884] 2013-07-31T10:53:21.659 [fsys\oracle] - RMAN_DoCommand: Error return: (17)
BEREMOTE: [07/31/13 10:53:21] [5884] 2013-07-31T10:53:21.659 [fsys\oracle] - ErrCodeTranslate(): Converting DBSB error code (0x11) to E_RMAN/E_ENGINE error code (0xe0008445)
BEREMOTE: [07/31/13 10:53:21] [7632] 2013-07-31T10:53:21.659 [ndmp\loops] - LP_DelegateBackupRestoreDLE: Error returned by LP_DelegateBackupRestoreDLEFunc thread (0xE0008445) )
BEREMOTE: [07/31/13 10:53:21] [7632] 2013-07-31T10:53:21.659 [ndmp\loops] - LP_ENV::MsgError: error 0xe0008445 processing object
Disable the Windows Firewall on both the Backup Exec server and the Oracle server.