I originally installed the TI 9.1 Enterprise demo OK. I installed remote agents, no problem and made backups. Sometime during this process I also installed backup server and group server. For some reason the group server now sees all the machines as "Inaccessible" and when I try to connect using Remote Manager I am prompted to supply additional user credentials. Regardless of what I enter the screen hangs then appears to connect, however it really does not. When you select backup, the challenge box reappears and I am prompted to supply credentials again. Nothing I enter works. I am using my Domain Administrator credentials, same ones I used successfully last week. I have tried everything I could find in this forum, however nothing works. What logon account should the remote server be installed as? It defaults to NT Authority, however I have also tried it as the local system account. I also have all firewalls turned off. Any thoughts, I am running out of demo time.