Connecting my Night Hawk AC3200 to AT&T modem

I have a Nighthawk AC3200 and experincing difficulties getting it to broadcast the SSID after setting up the AT&T a modem. 

On the AT&T device IP Passthrough menu I have allocation mode set to -  PassThrough.

Passthrough mode set to - DHCPS fixed

Even though my Nighthawk is plugged into the ARRIS AT&T I had to manually add the NightHawk MAC address in the Passthrough fixed Mac address because the Nighthawk MAC address was not in option but every other device on the network was. 

I also disabled Wifi 2.5 and 5 on the AT&T device. 

I saved the settings and rebooted both the AT&T and NightHawk devices but when the NightHawk came back up I didn't see the SSID listed on the device.  

I connected via ethernet cable to laptop and I'm able to web browse but not able to connect to the GUI interface for Netgear. I tried both IP's as well as 10.0.0.1 and was not able to connect. 

Does anyone know why the Nighthawk SSID isn't showing and how I get it to display. 

Also why am I able to connect local to the NightHawk but can't access the GUI?