I just updated to the latest firmware RUT2_R_00.07.01.2 and all of a sudden the 4G connection stopped working.
I have tried turning the auto APN setting off, set up the operator manually after scanning but nothing seems to work. This router is acting as a VPN access point for all of our equipment at our customer's site and we need this issue to be resolved asap. What is the best way to restore everything back to the state prior to the firmware update?