When i configure my backup i can view my dss share and file from my Veritas Backup Exec 10.0 Rev. 5520 server but when i execute it, it fails with the following error:

Final error: 0xe000846b - The resource could not be backed up because an error occurred while connecting to the Backup Exec for Windows Servers Remote Agent.
Make sure that the Remote Agent is installed on the target computer and is running.
Final error category: Resource Errors

Backup
The Media Server was unable to connect to Remote Machine DSS.
The Media Server will fall back on the local agent to try and complete the operation.

Backup- DSS
Unable to attach to DSS/share_volumes.
V-79-57344-33899 - The resource could not be backed up because an error occurred while connecting to the Backup Exec for Windows Servers Remote Agent.
Make sure that the Remote Agent is installed on the target computer and is running.