If you're putting the device in bridge mode I have to ask, are you trying to disable wifi or the CoxWifi hostspot? From my experience, I don't think you can disable the wifi radio but if you're still seeing the CoxWifi hot spot, that's another setting that needs to be changed. Note if you disable your CoxWifi hot spot, you may still see it broadcasting by way of neighbors.
Yes, I'm trying to disable WiFi. I don't need it as I have multiple access points backhauled to the router. I figured out how to put the modem in bridge mode to eliminate the Wi-Fi, but when I look with a WiFi analyzer the waveform is still there. It's not a neighbor, etc. And my wife wants the least number of radios, in particular in her house. As you probably guessed I am relegated to the garage and only come in for meals. Hahaha!!
Your best option at that point is to simply return the device and install an approved modem only device. The default option sales offers is the free included gateway but if that's not what you want you'll usually have to phone it in and ask for your account to be reconfigured for a stand alone modem.
Setup the SSID on the the modem to be the same as your access points to become part of your mesh network.
