V-79-57344-65072

Hello everyone My symantec backup exec 2012 is installed on  windows Server 2008 R2 Virtual Machine,

when i am trying to backup my domain controller which is windows server 2003 x86 sp2 Ent Edition, the backup is failing.My BackupExec is uptodate with latest updates

The server has two network cards and one network card is connected to SAN via ISCSI initiatore.When i try to backup i am getting error

Completed status: Failed
Final error: 0xe000fe30 - A communications failure has occurred.
Final error category: Server Errors

For additional information regarding this error refer to link V-79-57344-65072

V-79-57344-65072 - An error occurred while connecting to the Backup Exec Remote Agent on the Backup Exec server. Ensure that the job options are correct, and then submit the job again. The backup set was not created.