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-mod...
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.
