backup exec 11D patched up with latest updates, running on win server 2003 SP2. 3 servers within same domain - remote agents on 2 of the servers. Have 2 logon accounts for backup exec - domain administrator and a backup administrator account. When I select resources off the server that has backup exec insttalled on and run test to check access I get "a communication error has occurred" message - yet it will test and connect to remote servers fine. If I change users for local server to backup user and then back to administrator it will test connect ok but does not keep connection - if I change selections or set to run scheduled then get communication error problem again - yet this is the server backup exec is actually installed on!