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Forum Discussion
Poor cable connection error message
I have Xfinity internet service. I have the Netgear CAX80 router/modem that I own. This was recommended by Xfinity. I read in the forums that the incoming speed is to fast for the router/modem?...
What speed from the ISP UP and down are you paying for from the ISP?
What FW version is loaded on the CAX80?
If you can't get the two page data posted, something you can check and have the ISP check for since they are responsible for the signal up to the CAX80:
Any Criticals, Errors or Warnings seen in the event logs page needs to be reviewed and resolved by the ISP. Indicates a signal issue on the ISP line up to the modem.
Correctables and un-correctables that should be mostly zeros seen on the cable connections data page.
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
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://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/
| Firmware Version | V5.1.1.8 |
| Cable Firmware Version | V1.02.08 |
ISP speed test shows @ 900 Mbps.
No splitters. Coax was install by xfinity.
I rebooted the modem yesterday when the problem started.
Thanks brian
So is 1Gb the download speed that you pay for from XF? If so, then 900Mpbs would be what to expect from the CAX80 with a ethernet connection.
I have same CAX80 however with Sparklight on a 1Gb/50Mbps service. Constant speeds seen at 900Mpbs or just over.
What problem are you seeing after there reboot yesterday?
Where are you seeing this problem?
If the power levels are over what is seen here:
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
Then you can install a cable coax line attenuator behind the CAX80. -3 or -6dbm maybe needed. Check your cable connections web page under the Power column first.