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Forum Discussion
merrywhether
Aug 30, 2023Aspirant
CM1000 intermittent outages from T4 resets
I've been troubleshooting intermittent connection outages for a while and first spent a lot of time on my router because it had the cursed ASUS firmware over the summer and I no longer trusted it. Fi...
- Aug 30, 2023
Power is too low and out of spec:
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
Lots of Corrrectables and UN-correctables that should be mostly zeros.
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.
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/
merrywhether
Aug 30, 2023Aspirant
Looking at the Netgear firmware chart, I noticed that supposedly the latest general firmware for the CM1000 is V7.01.01 while Cox is supposedly on V3.01.04, and I'm sitting in the middle somehow at V6.01.07. I'm guessing that perhaps Cox has done some updates since the chart was last updated in April 2023.