Just reconfigured the network from scratch. Used another unit as the main. Setup the 2nd unit. The first 2 units connected nicely and with PLC+Wifi as expected. Was able to add the "faulty unit" that...

My Deco PX50 units have been solid for months, but since last week they started crashing once or twice a day. They just stop working, wifi SSID sometimes disappears. Before they were setting wifi+PLC...