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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 router, so purchased a TP-Link AX6000. Still doing the same thing. So, upgraded the router. Cox had mentioned that we would need to upgrade to a DOCSIS v3.1 anyways, so why not. Purchased the CM1000v2 and still having the same results. All the lights stay on and functioning, which is why I originally thought it was the router. Only way to fix it is to power cycle the modem and works fine for a couple days, then same issues all over again.
I had Cox Contractor out last month, and he replaced the line from the Ped (only about 10 yards from our house) to the house. Changed the RG-6 fittings on the line that goes in to the house for approx. 5 feet to the modem, straight from the box outside that wall.
I had to reboot the modem about an hour ago because the internet vanished again. Here are the details of what the modem connection currently looks like while running.
We are on the Cox Gigablast Plan just FYI. Below is the Firmware Info. Connection & Event Logs are in the attached PDF file to this post.
Hardware Version | 2.02 |
Firmware Version | V6.01.07 |
Cable Modem Serial Number | 5UY10CWSxxxxx |
CM certificate | Installed |
CM MAC | 94:a6:7e:0c:49:f4 |
12 Replies
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Power is too high:
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router?article=24311
Be sure there are no coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.
Be sure to power OFF the modem for 1 minute then back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.htmlFURRYe38 - I love the "canned message" on all your responses - LOL. With the amount of times I've read it, I can almost repeat it my memory - LOL HA HA HA I read that a couple months back before I called in for service, and the contractor did in fact test with his meter, and said everything's okay. Now whatever that means, who the hell knows.
Also, there are no splitters or anything. I have a line that goes from the Tap in the Ped about 5 yards tops from the house (which is the line the contractor replaced), to the J-Box which there's only two lines in there. One for the Cable Modem which is right inside the house from the J-Box on about a 4 foot line through the wall, and the other connection which is UNPLUGGED is to the On-Q box in the laundry room, which is unplugged because we don't use anything Cox other than the modem right inside the house from the J-Box. The tech unplugged the Splitter in there and just threw a barrel connector on the lines.
So you are saying the levels I posted in that PDF are too high? What should they be roughly, for someone who is only about 5 yards tops from the Tap with no other devices in line from the Ped Tap to the Modem?
