How Do I Fix Comcast Weak Or No Signal. When we turned on the tv, it says no signal. Make sure your router is upgraded to the latest firmware.
I have played with cables, they sent a new box, then a new modem. All you need to do is to find out what is wrong and try to fix. I either have to reset power cable or reset from phone app.
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Wait up to 2 minutes for the tv box to reboot. First, ensure tv's input is on the cable input. You can try to fix the issue by resetting your tv box. See here for a guide on this.
