Modem/Router Combo Internet Issues
Hello, all. I have the modem/router combo unit from Cox, a Technicolor CGM4140COM. At seemingly random intervals, my speeds drop to 2% of my plan speed. It doesn't matter if it's my wirred connecti...
Forum Discussion
When did the problem start and did anything change around then? Also, post your signal levels from 192.168.0.1 > user;admin password:password > Connection > Cox Network > Scroll down and take a few screenshots of the downstream and upstream levels. You will have to scroll over and take several pictures to see all the data. Last, how does the coax get from the street/pole to the room the gateway is in? Any splitters/amp/filters? Do you live in a house or apartment/condo of some type?
Also, don't use chat. They are outsourced overseas and are poorly trained. Email or twitter or call in and ask for CAG.
Thanks for the call-in tip. I have restarted an old email chain thanks to Chris' reply.
The problem has been intermittent for a long time. To put an actual timeframe on it, the email I previosuly sent was a couple weeks after a chat I had and that was September 2024. I can say with certainty that it had been a problem before that, just less frequently as far as I recall.
It's a townhouse neighborhood so there is nothing visual that I readily recognize. I know there is a box on the side of my house and I imagine another nearby junction of some sort.
Signal Levels:
Looks like your issue is your second downstream OFDM channel. SNR should be above 36 or in the 40's like the rest of the downstream channels. It doesn't even seem to be reporting the SNR or not locking on. The problem is in the 900Mhz. The ingress could be anything from someone's old cordless phone to cellular. The question is where it's leaking in. How many active outlets do you have in your house? Do you have TV service? Last, do you know if your friend near by is having the same kind of signal issue with OFDM?
Ah, I see what you mean even if that's all latin to me. I mentioned your contributions here to the rep who just send some clean up and update codes to the modem. I'm hoping I see some stability as a result. I will say, what you called out now shows as meeting your suggested levels too:
As far as your questions though, I believe there are perhaps two active coxax spots. I don't have TV service. As far as the OFDM signal issue, I could ask the friend who is about a mile away, but I assume that you might mean closer. Sadly, the neighbors around here are almost always renters so even asking them to check it out might be a bit much. 😑
who just send some clean up and update codes to the modem
My guess is they reprovisioned it. Hopefully that helps but I wouldn't hold my breath. If not, I would look into getting a direct connection from outside to the gateway. You need to figure out how the wiring in your house is run. Why do you need 2 active outlets? You can ask Cox to come out to look, but if the issue is inside your house, there would be a charge. Fingers crossed.
