It means you have a bad signal. The problem is it could be anything from the ONT, wiring, splitters or the box itself. Just make sure all the connections are tight at ONT, splitters , jack, and box. If that don’t help you’ll probably have to call to troubleshoot.
I am having this same issue. All other channels work perfectly except for 639. What's up? It can't be the setbtop box.
It definitely could be the set-top box. It could also be a lot of other things too. It could also be the ONT, wiring, or splitters. Make sure all you connections from ONT to the box are tight and if that still doesn't fix it you might need to schedule a tech visit.
I have been dealing with same issue for a couple of weeks or more. Channel 639. Really breaks up. Impossible to watch and audio is all cut up. Ran thru troubleshooting in online chat and nothing worked. Tech coming out in a few days.
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