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Belcantor's avatar
Belcantor
Guide
Apr 29, 2018

C6300 unable to change dns settings.

I am no longer able to specify which dns servers I wish to use. When I attempt to change them to for instance the google dns servers (8.8.8.8 or 8.8.4.4), when I click apply the modem responds with invalid ip and returns to the former page where the dns servers assigned by my isp remain. Any answers on how to solve this? I was able to do this when i first acquired the cable modem but am no longer able to do so.

Features
Troubleshooting

1 Reply

  • TheEther's avatar
    TheEther
    Guru
    Apr 30, 2018
    It's possible that your ISP installed firmware that locked out changes to the DNS servers. If this is, in fact, true then you really only have two choices.

    1. Override the DNS settings in all of your devices. Obviously, this is a pain.
    2. Dump the C6300 and get a separate modem and router.