I have been using this router for a long time and have it with fallback to 4G. Worked fine until now after upgrading to the latest firmware. Now fallback does not work. Followed the instructions and s

I have a MR600 4G router with sw: Firmware Version:1.7.0 0.9.1 v0001.0 Build 220826 Rel.58057n. It is configured with a backup of 4G if the WAN fails. Lan setup is : (192.168.0.254) When it is booted