I have 3 Wifi access points in my Home. The broadband router is on 2.4GHz channel 1, and a pair of powerline APs are on channels 6 and 11, so there’s minimal overlap between the three. My Roam Alexa and Roam SL are set up as a stereo pair and stand on the same desk as the router, about 1 metre from it. Despite this the Roams regularly connect to one or other of the powerline APs despite the signal strength being considerably lower. Why? I’d expect the Roams to go for the best signal. The only difference I can see is that the router only supports a 20MHz channel width while the two powerline APs support 20/40MHz.
I’d really like the Roams to connect to the router and start there so they can get straight out onto the internet. If they connect to a powerline AP then any data to them has to come in through the router, out through the local Ethernet powerline adapter, across the ring main, into the remote powerline AP, and out from there over Wi-Fi to the Roams, which is so unnecessary. Any suggestions?