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CM1000v2 keeps disconnecting, high uncorrectable codewords
I've been trying to stop my internet (800Mbps xfinity) from disconnecting periodically. It works fine for a long period, but then it disconnects relentlessly and I disconnect/restart both the modem a...
Any Criticals, Errors or Warnings in the event logs needs to be reviewed by the ISP. These indicate a signal line issue from the ISP up to the modem.
You have tons of correctables and un-correctables that should be zeros.
Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended.
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://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/