@TP-Link OK; factory reset worked, but the same problem persists: the Musiccast just won't connect to the internet in the setup process. The modem was supplied by my ISP, TPG. It functions fine with...

Now stumped: have been trying to connect my Yamaha Musiccast to my Archer 1600v router. It connected and worked for a few days; but then would not detect any of the devices (I have three rooms with...