I just wanted to report an interesting scenario. I had a power outage yesterday and the Gateway is no longer connected to the LAN. I presume it fell back to cellular because my router rebooted when the power went out. Unfortunately I'm traveling now and have no physical access to try to get it to reset back to the LAN.
Note that ,y Gateway is connected to my LAN by Ethernet.
Note that ,y Gateway is connected to my LAN by Ethernet.