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Forum Discussion
CWaters75
Apr 23, 2022Aspirant
CM1000v2 Cox Dropping Internet Connection
Good morning folks. I have been having an issue with my Cox service for quite sometime. The internet will just "vanish", but the Eth0 & WiFi will continue to work fine. At first, thought it was our r...
CWaters75
Apr 23, 2022Aspirant
Makes sense FURRYe38... The modem as it is, is a bit too warm to the touch in my opinion. The modem is in an enclosed cabinet right next to my 1TB Western Digital NAS drive with an IDE drive in it. The NAS drive runs a LOT cooler than the modem does.
It's almost like a piece of pizza... The slice you just ate that was chillin on the counter top all afternoon is my NAS drive. The piece you just ate that was in the microwave for 15 seconds is the Netgear Modem.
I understand the web interface and / or reset button work perfectly fine. HOWEVER... When we are on vacation flying to San Diego, Northern Arizona, etc. for lunch, and the internet vanished, there's no way to reboot the modem without calling Cox which I can fly back from Sedona to N. Phoenix faster than I can get someone on the phone at Cox.
FURRYe38
Apr 23, 2022Guru - Experienced User
Once the power and signal on the line is to spec, you shouldn't have a need for any reboots. Modems are designed to run for days and months 24/7.
- CWaters75Apr 23, 2022Aspirant
FURRYe38 - just set up a T-Call with an In-House Cox Tech instead of a contractor for Monday afternoon. Contractors don't have availability to do attenuators. I know they can add Amps, but can't do anything to "reduce" the signal at the Tap.
This should be interesting.
And let me ask you this... If you *don't* have the Attenuator in there, what are your values?
- plemansApr 24, 2022Guru - Experienced User
Did you try a signal attenuator? Or even sticking a quad splitter (with the other 3 legs capped) on it?
You are pretty darned high but its not getting errors. Its just might be erroring out or triggering a reboot/reset with that high of values.
And your upstream is low enough that a signal attenuator or splitter means your modem can up its upstream power without causing issues (if you've got a decent attenuator/splitter)
- CWaters75Apr 24, 2022Aspirant
plemans, no I have not tried anything. I set up a service call for an in-house tech (not contractor) to come out early next week and either install an attenuator or splitter or whatever they need to do to get the levels down to normal.
On the Cox Forums, someone had mentioned this, which is somewhat in line with the responses I have bee getting from everyone here. Obviously the person couldn't read that I said it is a straight line with no splitters or anything installed. 🙂
The SNR is low for the OFDM channel which is the 300Mhz range. I also see error in the logs about the OFDM channel. Finally I see a T4 error, which is a full reset. I would try to bypass all splitters for a day and see if a direct connection from the street to the room the modem is in helps. If not, schedule a technician.