Sometimes when you restart the server, or the Novosoft Backup Network Coordinator service on the server, it may lose the list of workstations, so they become unavailable for selection through the Backup Network option in the menu. To resolve this problem:
See also: FAQ | Network Server Backup:
⇒ Why did some of my workstations disappear from the list?
⇒ Why workstation contents are empty after selecting a Backup Network plug-in?
⇒ My network backups are running very slowly. What can I do?