said by njmarchetti:- Unable to roll back to previous firmware via the router GUI Firmware Restore (states: Backup Firmware is missing or corrupted. You can not perform Firmware Restore until your next valid Firmware Upgrade.)
Has anyone else seen similar behavior? Is it possible to manually rollback the firmware to the previous version? I could not find older firmware downloads online via actiontec or Verizon.
I saw this behavior when I received the 40.20.1 update. When I originally received the router, I had been using firmware version 40.19.x without any problems. When I installed the 40.20.1 update a second time, the option was there, but only to roll back to the same 40.20.1 version. Upon updating to the 40.20.7 firmware, the option to roll back to 40.20.1 is there.