Just set up my new AX1500 and devices on the network are unable to connect. My Amazon Show is about 25 ft from the router on the same floor and does not show anything beyond the "connecting screen". My iPhone shows the message "Unable to join the network "xxxx"" but shows the network as being full strength. Other devices are on the network seem to be stable enough but the handful of devices don't seem to be able to get an IP address asigned or something. Help please? I have people working from home and doing school.