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jcomey's avatar
jcomey
Aspirant
Nov 28, 2022

CAX80 Shows Active Connection, But No WiFi Available

Hi, I'm with Cox (it's the only available option where I live, sigh), and I've had two issues with my CAX80.   1) The WiFi was available on only the 2.4ghz band (the 5ghz band would show, but noth...
Hardware
Troubleshooting
FURRYe38's avatar
FURRYe38
Guru - Experienced User
Nov 28, 2022

What FW version is loaded? 

 

What channels are you using for the wifi? 

Any Wifi Neighbors near by? If so, how many?

 

Is Smart Connect, AX and OFDMA enabled on the modem? 

 

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-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://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

jcomey's avatar
jcomey
Aspirant
Nov 28, 2022

Okay, now that I'm home...

 

SC: Not enabled
AX: Enabled

OFDMA: No option for that (nothing in WiFi settings...odd because there is an ODFM channel, 159, that shows up in the Cable Connection section)

 

2.4ghz Channel: Auto (currently 4)

5ghz Channel: 36


I did find that our coax was loose (though my girlfriend might have done this while resetting this morning; I typically don't touch the coax, and I made sure it was on tight on Saturday after Cox left).


Regarding the logs...I have a bunch of DoS attacks (which I've read are likely not attacks, but also probably not helping my connection).

 

I am currently connected to the 2.4ghz, after a reboot. The 5ghz band is unavailable (it is showing, and my TV is using it, but I am hooked it via ethernet to the TV).

 

Do you suggest a factory reset? Or should I investigate something else?

 

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Nov 29, 2022

    Can you post the Event Logs page as well. 

    Power levels are kind of all over the place. 

     

    I would update FW and then after the modem is back to ready, factory reset and setup from scratch. 

    I would enable Smart Connect and then set manual channel 1 and 40. YOu should be able to enable Beamforming and MIMO. If you don't have any AX supporting devices you can disable AX mode or leave it enabled. Under Advanced tab/Advanced Setup/Wireless Setup.