So Time Warner came out and installed a Motorola SBG6580 in my home (Docsis 3.0) to allow me to receive their Wideband Internet offering (50 down / 5 up) but i'm having huge problem with how it fits into my network. I have an Airport Extreme and 2 Airport Expresses. Now the main problem is the Motorola Cable Modem is both a modem and a router. I want it to just act as a modem. I called TWC and they told me to disable NAPT mode, which puts it into a state where it just acts as a modem. Great, that sounds good. I went ahead and did that but when I rebooted the whole network it only allowed 1 computer to connect. None of my iPads or iPhones or Xbox could access the network anymore. (My Airport is on Firmware 7.6). Why is only 1 computer able to access the new network? What am I missing?