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Forum Discussion
Pcyph3r
Feb 28, 2022Aspirant
CM1200 has netgear and comcast pointing fingers with no end (solution) in sight
this started almost 3 weeks ago now, I have had the same modem (CM1200) connected in my house for almost a year. No issues, never skipped a beat. I havent changed anything in my setup. now i am havin...
- Feb 28, 2022
Your connection info looks pretty good (other than a few errors)
Your log indicates line issues.
Another option you have would be to rent a modem from xfinity because then they can't blame it on 3rd party devices.
Reason why sometimes a reset/reboot fixes it is the modem might be having issues with specific channels/ranges.
when it reboots/resets, it can use a different channel/range and be fine on that range. But when the cmts switches it, it causes issues.
Pcyph3r
Feb 28, 2022Aspirant
Pcyph3r
Feb 28, 2022Aspirant
- Pcyph3rFeb 28, 2022Aspirant
- Pcyph3rFeb 28, 2022Aspirant
sorry, but the .PNG i posted didnt seem to work on my end. here is a snippit of when my channels failed to lock and it was not working at all.
1 Not Locked Unknown 1 0 Ksym/sec 22800000 Hz 0.0 dBmV
2 Locked ATDMA 2 5120 Ksym/sec 16400000 Hz 44.3 dBmV
3 Not Locked Unknown 3 0 Ksym/sec 16400000 Hz 0.0 dBmV
4 Not Locked Unknown 4 0 Ksym/sec 29200000 Hz 0.0 dBmV
5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBm- FURRYe38Feb 28, 2022Guru - Experienced User
You seem to have some Correctables which normally should be zeros.
You have a event logs capture from the modem as well?
Power levels are with in specs:
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router?article=24311
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
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 check end connectors that connect to the mode for good fittings and connectors are snug.
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.html