A:Answer It sure is! I had the exact issue after I realized how trash the 2 in 1 router/modem AT&T and went looking for an upgrade. For some reason my internet speed was maxed (1 gig fiber) on my laptop WiFi but always slowed down to a crawl on all my other WiFi-connected tech. At first I was stuck as, like I said, the original ATT box is both router + modem, but things were fixed once I figured it out after tinkering with settings. Basically, if you have the same ATT 2-1 combo router/modem I have or just a 2 in 1 in general, turn off the WiFi settings ONLY for it. Leave everything else as is, and you’ll effectively turn it into a simple ATT router. From there I just hooked up the Red ONT cord into the ONT port of the ATT modem and connected an Ethernet cord to the Internet Port on the NightHawk. I’ll include pics below. Afterwards I checked speeds and my tv WiFi, iPhone WiFi, iPad WiFi, and everything else was maxing close to 1gbps simultaneously. It’s a monster router!