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Forum Discussion
jrayner
Sep 13, 2023Aspirant
Nighthawk CAX80 - Can't upload to Slack or Shotgrid
Hello, for the longest time I've been having trouble with my NightHawk CAX80. Purchased end of 2022, since then I've had trouble with uploads. Downloads are fine, but uploads fail 90% of the time, pa...
jrayner
Sep 13, 2023Aspirant
diagnostics in this and previous message. sorry for all the posts, still figuring out this forum and how best to format things
FURRYe38
Sep 13, 2023Guru - Experienced User
Power levels are with in specs.
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.
I see lots of correctables and un-correctables that need to be zero:
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/
- jraynerSep 14, 2023Aspirant
Thanks so much FURRYe38 , I will try these out as soon as I can get Comcast out here.
I'm using the CAX80 as my modem and my router, btw, in case that changes anything.
So these correctables and uncorrectables are all bad to see right? Should I expect to see none of those in the diagnostic report, in a properly functioning modem/coax cable setup?
- FURRYe38Sep 14, 2023Guru - Experienced User
When there are a ton of numbers seen and accross all channels ya, not good. Usually a bad cable or connection or possible cable splitter causing these values to go up. Should be mostly zeros or very low value numbers seen here.
- KitsapSep 14, 2023Master
jrayner wrote:Thanks so much FURRYe38 , I will try these out as soon as I can get Comcast out here.
I'm using the CAX80 as my modem and my router, btw, in case that changes anything.
So these correctables and uncorrectables are all bad to see right? Should I expect to see none of those in the diagnostic report, in a properly functioning modem/coax cable setup?
Keep in mind, the values for the correctables and uncorrectables are cumulative over time since the last reboot. When you reboot, they reset to zero. Seeing values in excess of say 1000 over a few days is different than seeing the same number over several weeks or months.
- jraynerSep 15, 2023Aspirant
Ah ok, thanks to both of you. I will reboot and check the numbers again, and present that data to Xfinity