Trying to update old firware in an Orbi RBR50. Firmware loaded is 1.4.0.18. Found the directions that you cannot update directely to the current firware, that you must update manually to 2.2.1.212. Downloaded that software and tried to do the manual update. Received message that the software is incorrect. Repeated the download and received the same message. Also tried to update using 2.0.0.74 just to see if that worked. Received the same failure message. Is there any resolution or is this firmware to old to update.
