Device Registration fails: Appliance connectivity issue with the license server - Time not set

I tried to register a RMA firewall with SFOS 21 EAP after it has been claimed in Central. It did not work. Either Administration -> "Registration" failed also Sophos Central -> "Sophos Central registration...
How to change the Device Registration Details on my firewall?

Hi, How can I change the Device Registration Details ? Is possible to change the details, after I have done registration? Thank you.
Can't restore backup. Insufficient space SG115 -> XGS116

Just for other to information! Firewall migration from SG115 (SFOS 20.0.0 GA-Build222) to XGS116 (SFOS 20.0.2 MR-2-Build378) is not possible exported backupfile from SG115 with a sice of 19,0 MB (19...
Restore error message from v20 to a v21 machine

Hi folks, received a strange error when trying to apply your the configuration from the XG115W to the XG VM - Unable to restore in red( I thinK). So thinking I typed the password wrong I tried again...
Possible to Backup/Restore to a different (higher/lower) model?

Hi, i was just wondering if it's possible with the latest SFOS to backup and restore from a XG 210 to a XGS 2300 and from a XG 230 to a XGS 2100? Thnaks alot!