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
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.
My thoughts exactly if it's something within my home. Weird to me that this wasn't an issue for so long though, but I could imagine some wear and tear aspect.
Direct connection from outside. Hmm. You're making me realize how I have seen at least two neigbors with cables running from their boxes into their homes. I wonder if they had similar issues. I always assumed they were just lazily wiring a room that didn't have a hard-line connection before.
I certainly don't need anything more than the one active spot. If I just physically disabled the outlets, could that help with the leak? The rep seemed to indicate a visist could be necessary too so we shall see. If it fixes the issue, I wouldn't even mind the charge. I WFH so this is killing me beyond just casual gaming and what not.
Update: Yep, shortlived. 😢As soon as I saw this again, I ran a speed test and I am back to 3% speed.The only way to disable the outlet is to remove the splitter that is splitting the signal between the two outlets and replace it with a coaxial coupler. Splitters are one of the most common things to cause problems. The cheaper ones have very little shielding and the casing can have problems with moisture over time.
As for the charge, if you think it could be a inside issue, look into Cox Complete Care(CCC). It's 10$ a month and you have to keep it for 3+ months for it to cover the charge, but that is 30$ vs 70-100$. CCC would cover multiple appointments during that 3 month period too. Just don't forget to cancel it after the problem is resolved. Maybe set a reminder on your phone.
Something else you might want to consider if your WFH is a back up ISP. Something like Verizon Home Internet but I think they recently named it something else. Outages happen so it's good to have a backup so you don't lose money.
