i have 2 solution if your beam stops every time you turned your tv off an on
YOU NEED TO TURN ON THE TV AFTER SONOS THEN TURN OTHER DEVICES ON
In my case i always turning on the tv after i turned on my tv box (humax). i didn’t change the priority for some time then decided to give the tv priority and problem solved.
turning on order;
2-tv (wait until tv completely booted)
then turn on whatever you connected to your tv through hdmi. you can buy usb on off switch for any usb device that you want to control when to turn on. (google: usb on off switch)
I have a roku and a humax tv box also connected through hdmi to My Panasonic tv. Humax tv box was causing the problem. now my beam is on all the time because it doen’t have a on off switch and takes some time to boot so i turn on my tv first, wait for few seconds to see a blank screen after it shows panasonic logo and then i turn on my tv box and voila, i have my beam works flawlessly. roku does not create an interference.
unplug any non essential USB TV WIFI DONGLES. I didn’t test it enough as the above solution worked and didn’t want to potentially mess up the working setup but it can be beneficial if you remove your tv’s own branded wifi adapter. i didn’t need keep that dongle connected all the time as i was getting my tv smart with roku rather than that panasonic wifi dongle.