Backup Fails for oracle database

Hi,

could anybody help me with this issue. 

when i try to backup test folder from x server it works fine. But when i try to backup the oracle database of x server it fails with below error message:

Job ended: Tuesday, May 06, 2014 at 6:19:51 PM
Completed status: Failed
Final error: 0xe0001403 - The logon account specified in the Remote Agent Utility cannot be authenticated. Update the entry in the list of authentication credentials on the Backup Exec server.
Final error category: Resource Errors

For additional information regarding this error refer to link V-79-57344-5123

I have verified the logon credentials and all passed as in attachment2.

could anybody suggest what am i doing wrong?

i am running a trial version which is valid for 60 days.