I have a few of the old HW2 & 3 Surf OTG boxes deployed as PepVPN nodes in remote, inaccessible, locations connecting back to a Balance 20 still running 6.1 firmware. The OTG’s are running latest available firmware.
Can I upgrade to firmware 7 or 8 on the Balance 20 while maintaining my PepVPN connections? I haven’t been able to find anything about what the equivalent FW level the OTG’s are running.