I have a RUT240. Firmware is the latest, as of writing RUT2XX_R_00.01.04.1
I use the System - Backup - Backup archive, and get a backup-Teltonika-RUT240.com-2018-11-15.tar file (If I unpack and inspect and it looks fine)
But I want to make sure it is valid and can be used at a later stage, so I immediatly try to Restore using this file, to the same unit.
I then get "Incompatible backup file selected, please choose another file"
What am I doing wrong now?