I have verified that the firewall is off and the Backup Exec for remote agent service is running under local system account on the backup Exec media server as well as on the remote Win XP machine. I used the Removeaa command in the Rant 32 Folder, rebooted the computer, ran setupaa and setupaofo commands to reinstall the backup agent, then rebooted the machines again. I am still deined access to these two macines. I tried uninstalling Veritas using the Add/Remove Programs in the Control Panel , the threw away all files I could find associated with Veritas, repeated running removeaa, setupaa, and setupaofo commands, still denied access. I am wondering siince I do have other computers that are able to complete the backup, if these two computers may have some sort of corruption in the registery files?