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Forum Discussion
Off2Geo
Dec 12, 2025Aspirant
CM1200 suddenly dropping on Comcast
I am suddenly having the same issue. Have to turn the modem off, wait a minute then turn back on. It's good for a bit, then it happens again. Times are totally random that it goes down. All lights sh...
plemans
Dec 12, 2025Guru - Experienced User
so 2 units have had similar issues. Tends to indicate the line even more. Especially with the logs. They're indicating a line issue.
Options?
- Check the line yourself in the house. Check for loose connections, kinks, corrosion, bad cables. Preferrable, move the modem to right where it comes in so it limits the potention of it being something in the walls causing the issues. Replace any splitters (or just remove them for testing)
- rent their modem for a month. See if it has issues. If it does, then they're responsible for it since they can't blame the "third-party device". I've used this option before when they blamed my equipment.
- Pay the $50. but get them to agree to refund it if it is confirmed to be their line issue. It'll help your case/chances if you've moved the modem to remove the chance it actually being something in the home.
Off2Geo
Dec 12, 2025Aspirant
I have checked the line. Thing is, it comes directly from the pole to the box located on my back porch. Last tech never locked box back up so I can just open it up. It looks fine. Goes from there straight into the modem. Wire was fed thru a previous hole so there is no 3rd connection (like a normal coaxial plate you would hook coax to.
- plemansDec 13, 2025Guru - Experienced User
Sounds like you've checked what you can. Time to choose one of the 3 options listed above to fix it. ISP's stink to deal with. Their first response is always "its not our line".