Sonos website claims “Effortless Listening,” but that has not been my experience. I am confused on router requirements. First, the website says works with any router, but the technician said I could not use the supplied Spectrum router because it did not separate the bandwidths.   So I bought a nice, good router Netgear Nighthawk AX6. Now, Sonos technicians say I need to separate the channels because of interference. (I have sent many diagnostics and was never told that before.)

Why does Sonos not tell you exactly what you need before you buy?