Thats great Al, will definitely give it a try. I am starting to understand and hear the benefits of isolation from noise in the system. The Nighthawk is a quality router, and it will be good to use it if there is even a subtle benefit in terms of better sound.
With respect to my dilemma regarding the inability to get the phone control app working while wired ethernet is engaged, a network engineer friend of mine provided the solution and it works great now. Essentially, I had to turn DCHP to 'off' then assign a static IP address (DNS). It seems the router was assigning an address automatically each time, which would not allow the control app using Wifi to connect. That's where audio is today : ) As a minor criticism, I would expect the manufacturer to fix that in development of software update PDQ, and meantime as a matter of importance explain very carefully to users what to do. The streamer is not effective without that app to control it remotely.