No signal: check source and cable connection error
Constant problem multiple times per day. Tv says no source from cable box. Other devices work so it’s just xfinity box. Unplug and plug in hdmi works occasionally. Reboot box constantly, sometimes works sometimes doesn’t. Xfinity sends refresh signal still same. Turn off come back later sometimes it’s working again. All connections tight. Pain in the rear. Paying for tv that I can’t watch.