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CM2050V goes offline every few weeks - how to troubleshoot
My Netgear Nighthawk CM2050V cable modem, purchased earlier this year, linked to Comcast service has been going offline every few weeks for the past two months. Comcast cannot find an issue. Powering the modem off/on fixes the issue. How do I troubleshoot the cause of this issue to identify the cause: Comcast, hardware, software, other?
Hardware Version: 1.01
Firmware version: V9.01.01
Thank you in advance for any help you can provide.
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Please post a copy and paste of the modems connection status and event log page.
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-routerThank you for responding. Per your request, I am providing cable connection status and event log. Also, I am providing event log export, with "gif" extension to allow upload.
Due to the one file attachment limitation I will upload each separately.
The connection status is attached to this post.
Attached is event log.
Attached of event log export in binary format with "gif" extension failed on Post.
Please let me know if you need any additional information.
I appreciated the links to "how to" articles.
Thank you
So power levels are good along with Correctables and Un-Correctable values.
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.
Be sure your using a good quality LAN cable between the modem and router. CAT6A STP is recommended.
What is the brand and model of the host wifi router connected to the modem?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.
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/