"Unable to attach" Access is denied. to Backup admin prividges are req

[Tectonic]

I am running Backup exec 8.6 and am able to aback up the root directires of the hard drive fine but when I try to back up the system I get the error message "access is denied . To backup or restore system state, admin privilegdges are required. I have used the local admin password of the machine to attach without success. I have a collection of 6 servers. 3 are backingup the system state fine but the other three gives the error message.
Anyone has any inputs???

 

[TheDonMiguel]

Is the remote agent service started with the "local system account"?

 

[Tectonic]

its installed and running

 

[dellboy]

what account is being used for the 3 machines that are working? Use the same account on the 3 machines that are not and you should resolve your problem. I have also sometimes found that logging in as the "backup" account and creating the job makes the backup successful. Can you actually browse and attach to the probelmatic machines from the host backup machine?