I receive a message, that I havent got enough rights for workstation backup. Why?

This message means that the instance of Handy Backup Network Server is launched by wrong user. To back up data stored on remote workstations, you need to launch the program being logged in by the user you specified as backup administrator during the installation of Backup Network Workstations.

For more details, please refer to Installation of Handy Backup Network Server in the User Manual.