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Forum Discussion
LaSabana
Dec 21, 2023Aspirant
Netgear Nighthawk CM 2050V Cable Modem
I have a Nighthawk CM 2050V cable Modem and my ISP is Xfinity/Comcast. This unit was purchased in Dec 2021 and therefore out of warranty. I am running Window 11 Home 23H. The issue that I am experie...
FURRYe38
Dec 22, 2023Guru - Experienced User
Power levels look good.
Whats the Correctables and Un-correctables columns look like? Should be zeros.
LaSabana
Dec 22, 2023Aspirant
Thanks FURRYe38,
Under-Downstream Bonded Channels
- Line 31-Correctables is 5102;uncorrectables 3893.
- Line 32-Correctable is 259;uncorrectable 178.
- otherwise all other lines are ZERO.
Is the downstream bonded Channels the only one you need?
- FURRYe38Dec 23, 2023Guru - Experienced User
Yes.
If there are correctables and un-correctables seen and not zero, try some of the following:
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.
Start with removing any amplifiers, signal attenuators, or splitters from the coax.
From there check the line for kinks, damage, moisture in the line.
Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
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://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/Again, Any Criticals, Errors or Warnings seen in the event logs needs to be reviewed and resolved by the ISP. Indicates a signal issue on the ISP line up to the modem. Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
- LaSabanaDec 23, 2023Aspirant
Hi FURRYe38,
I can't thank you enough for taking the time forward your previous info. I really appreciated, I am going to send three photos of adapters that are located in ISP box and another COMMSCOPE AC Adapter that is installed inline inside the home from one of the lines leading out from the ISP box. If you see anything out of place please advise. But thanks again and I will follow-up with my ISP.
- FURRYe38Dec 24, 2023Guru - Experienced User
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