To back up workstations that are located in a different domain, local user of Handy Backup Server Network must match the user specified as backup administrator (which is done during the installation).
For more details about roles in network backup, please refer to Installation of Handy Backup Server Network in the User Manual.
Related pages: User Manual about Workstation Configuration.
Related solutions: Handy Backup Server Network.
See also: FAQ | Network Server Backup:
⇒ The list of workstations is empty or lacks some of the networked computers. Why?