XG v17.5.4 MR4-1 Released (MR4 update 1)

Question

XG v17.5.4 MR4-1 Released (MR4 update 1) 
 Paul Jr

FloSupport · Accepted Answer

Update: Due to an issue in IPSec in combination with Sophos Connect, we had to replace the initial SF 17.5 MR4 (17.5.4.409) with SF 17.5 MR4-1 (17.5.4.429). The new firmware is available for download from your MySophos account . 
 
 Community Blog: SFOS 17.5 MR4 Released 
 
 Regards,

HuberChristian · Answer

My Firewall is currently running on 17.5.4.409. I could go back, but i re-set the option again, and afterwards it worked again.

Aditya Patel · Answer

Hello @HuberChristian, 
 If you have upgraded 17.5 Mr-4-0 before then you may simply roll back to 17.5 Mr-3 and replace the non-active firmware i.e. 17.5 Mr-4-0 with the latest 17.5 Mr-4-1 and perform the upgrade. In case you are encountering any issue with the latest version, you may simply roll back to 17.5 Mr-3. 
 Please bear in mind that the backup of the later firmware version will not able to restore on lower firmware.

Aditya Patel · Answer

Hello Big_Buck , 
 The SFOS would keep two sets of configurations with ties to their respective firmware. Now if you override with another firmware, the configuration and the firmware are both removed from the system and in this case, the only option is to upload the older firmware again. At this point, the backup from the higher version will not be compatible with the lower version. So it will be factory reset to default.