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I have been experiencing extream packet loss when playing Fortnite and buffering when watching Twitch streams.
Image of levels below.
Also why are the uncorrectable so high on channels 9 -16? What should I do?
Your power levels and SNR are very low. Do you have any splitters you can replace or bypass? If not can you describe how the coaxial gets from the street to the room the modem is in?
Basically, you want the most direct route from where the coaxial grounds on the side of your house and the outlet feeding the modem.