8000P Show on Wifi list but has no Internet Connection

[BeachNY]

I just installed the 8000P.  I followed the steps on the app.  I connected it to the back of my modem.  The Router is showing on the wifi list but has no internet connection. 2 questions, 1. how do i get it to connect to the internet and 2. does it have to be wired to my modem?

[plemans]

1. yes it needs to connect by wire to the modem

2. that question alone makes me suspect your current modem isn't just a modem. What actual modem do you have?

[BeachNY]

I have a cable (TWC/Spectrum) modem.  It is a Technicolor TC8717T.

[plemans]

That modem is a modem/router combo device. 

it puts you in a double nat. 

What is Double NAT? | Answer | NETGEAR Support

options? (only use 1)

1. put the ISP device in passthrough/modem only mode

2. put the netgears IP address in the ISP routers DMZ

3. put the netgear into access point mode. 

[BeachNY]

Thanks for this info.  Once I figure out what it all means, I'll let you know how it goes.