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Homeboy123456's avatar
Homeboy123456
Aspirant
Feb 18, 2020

Having DNS connection issues on my guest Network - CG3000D

Hello,

I have set up a guest network on my Netgear cable modem.

The guest network is having trouble with DNS servers.

 

Some sites work fine: gmail, google, wikipedia.

Some sites give this error: hulu.com, netflix, my bank.

 

This site can’t be reached

www.hulu.com’s server IP address could not be found.

 

  • Try running Windows Network Diagnostics.
DNS_PROBE_FINISHED_NXDOMAIN
Network Diagnostics is no help.
One thing I noticed was the guest network does not have any IPV4 information. Not sure if that is relevant.
Things i have tried:
 
  • I have power cycled the modem.
  • I have removed the power cord and then restarted it.
  • I have tried to set the DNS manually for that network to 8.8.8.8 and 8.8.4.4 but when I would validate, it would take me to the Windows Network Diagnostics (WND). The WND would run for a bit then return that there wasn't an issue. But the issue persisted.
  • When I log into the modem, there doesn't seem to be any way to look at my 2nd network and adjust its settings.
  • Finally, the properties of my 2nd network doesn't include any IPv4 information.

Thanks in advance for any ideas.

Chris

 

3 Replies

  • plemans's avatar
    plemans
    Guru - Experienced User
    Feb 19, 2020

    the CG3000D was a modem that was directly sold to ISP's such as cox/spectrum. 

    https://kb.netgear.com/24324/No-NETGEAR-support-for-the-CG3000D

     

    I couldn't find much info on it or its newer version the CG3000D supporting a guest mode either. Potentially you could try factory resetting it but I doubt your isp is going to do much for support on it if it doesn't work. 

    • Homeboy123456's avatar
      Homeboy123456
      Aspirant
      Feb 19, 2020

       

      plemans wrote:

       

      I doubt your isp is going to do much for support on it if it doesn't work. 

      Yup, that's exactly what happened. To the extent that they said they didn't work on 3rd party modems. I told them they provided me the modem!

       

      And yes, I read the manual for similar CG3000s, and there's NOTHING in there about guest networks. And yet, I created one via the Cox website; and I can discover it using my phone or computer.

       

       

       

      • plemans's avatar
        plemans
        Guru - Experienced User
        Feb 19, 2020

        I would probably factory reset it to disable the guest network. 

        I'm not a huge fan of guest networks. Those I trust on my network can use the full network, those who i don't, can use their phone date.

        Just what I've done on mine. No complaints yet

        :)