CM1000 High Uncorrectable Codewords

Hi I own a Netgear CM1000 Modem, for just over a year now. The other day I started seeing high levels of Uncorrectable Codewords under the cable connection tab. This all came from an outage from my ISP(Comcast). I contact my ISP and tell them I am having packet loss and lag issues. I explain in alot of detail on what was going on and how everything was fine before whatever they did on the lines/node outside. I am guessing I talked to the lowest tier support they offer because they really had no idea what I was talking about. My power and signal levels are well within spec to produce an optimal connection from what I can see. (I will post a picture here so you can see as well.) I tell them this and they don't understand. So I send them a screenshot and point out in red the Uncorrectable Codewords and they are like, well you should try contacting the manufacturer of the modem for more info. So here I am, unfortunately for whatever god awful reason Netgear doesn't allow you to contact email or live chat if you product is out of warranty??? This is why I am posting here. Basically the whole point of this post is to ask what Uncorrectable Codewords really means and what can I do to "fix it" from my end.Thanks