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fiddletwix's avatar
fiddletwix
Aspirant
Jul 18, 2016

C3000Dv2 won't bridge

I recently came home to discover that my Cable Modem was no longer in bridge mode and had NAT enabled. I went to change the setting by unchecking the "Enable NAT" box but the change won't stick.  The cable modem remains in NAT mode.  I unplugged the cable modem and then reset it when I powered it back on.  I was still not able to disable NAT mode.   I am a TWC customer and the firmware is the correct version as per this page: http://kb.netgear.com/app/answers/detail/a_id/25477/~/current-firmware-version-for-netgear-cable-modem-routers

 

Any suggestions?

Troubleshooting

3 Replies

  • TheEther's avatar
    TheEther
    Guru
    Jul 18, 2016

    Did TWC supply you with the modem?  If so, check with TWC.  Maybe, just maybe, they have locked out bridge mode.

  • fiddletwix's avatar
    fiddletwix
    Aspirant
    Jul 18, 2016

    No, this is my own device but this did happen when they also made some change that forced an IP change. I had the same IP for about a year and then it changed along with bridged mode. Is there anyway to verify that config option is locked out? They have in the past acted like this is their modem and factory reset it before so I can believe they made the change.

    • TheEther's avatar
      TheEther
      Guru
      Jul 19, 2016

      I don't know of any other way to verify other than the GUI itself.  Can you try doing a factory reset?