How to use High-Speed Internet Gateway with Existing Router

Eric Terrell wrote:

I just got a T-Mobile High-Speed Internet Gateway and am trying out the ISP service. So far I'm very impressed with it.

I have the cylindrical device (5G21-12W-A).

I've read that it's possible to use this device with an existing router. Can anyone point me to instructions for doing so?

I want to do this as my router (NETGEAR Nighthawk Pro Gaming XR500 Wi-Fi Router) allows me to use an external USB hard drive as a NAS, which is very convenient.

If you're netgear has AP mode put it in that mode it will prevent double nat since the T-Mobile Gateway will provide the  local ip addresses then turn off the wifi on the T-Mobile highspeed gateway so you don't have interference from the T-Mobile wifi with the highspeed gateway you have to disable all ssid's in order to completely turn off the T-Mobile wifi. I have a netgear nighthawk router too that I use with my service and no double nat problems! Hope this helps!