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chrisnh03's avatar
chrisnh03
Tutor
Mar 11, 2022

Nighthawk AC1900 WiFi Cable Modem Router dBmV Power

I have a Nighthawk AC1900 WiFi Cable Modem Router with xfinity internet service that intermittently drops offline.  I called Netgear when I this first happened at the time of purchase (modem is about...
FURRYe38's avatar
FURRYe38
Guru - Experienced User
Mar 11, 2022

Looks to be with in spec:

https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router?article=24311

 

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. 
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

  • plemans's avatar
    plemans
    Guru - Experienced User
    Mar 11, 2022

    Your power is spot on and you have no errors currently. but thats just a snap shot. 

    Got a screen snip of the event logs? and the upstream info? 

    • chrisnh03's avatar
      chrisnh03
      Tutor
      Mar 11, 2022

      Thanks for the feedback plemans.  As I mentioned in a previous reply, I couldve sworn the Netgear rep told me the downstream power needs to be at .5...buy maybe Im not rembering the conversation well.  Either way, upstream info and event logs are below. 

       

      Thanks for looking

       

       

       

      • chrisnh03's avatar
        chrisnh03
        Tutor
        Mar 11, 2022
  • chrisnh03's avatar
    chrisnh03
    Tutor
    Mar 11, 2022

    Thanks for the feedback.  I couldve sworn the Netgear rep I spoke with said the power shoudl be .5 dBmV...but maybe Im not remembering correctly.  I shouldve put in my original post, the first thing I did when getting connection issues was have the ISP come out and check out the lines.  Everything according to them is good.  They checked the signal to the modem and there are no splitters at all in the house.  I didnt ask them specifically if they provisioned the modem correctly so I can check on that.  I also can check to see if RG6 is being used.  Thanks for the advice...much appreciated.  Ill check out the links you posted as well.