The problem actually started 6 months ago. I'm not sure if it was due to a power outage or a firmware update. I've tried everything, swapping the nodes, resetting the network, deleting the app, reinstalling everything, and starting from scratch. Now, with the latest firmware, when I select to connect to the set-top box located on the upper floor, it automatically disconnects me from the network and doesn't allow me to reconnect to that device. It gives me an error. I have to reconfigure it again. The curious thing is that if I connect an Ethernet cable from the secondary node to a PC, I do get internet