AC750 wifi router

[cooookie537]

trying to conect to internet when I trouble shoot it says doesnt have a valid IP configuration

[plemans]

What router do you have? AC750 is a speed.

What modem/gateway is it connected to? 

There's a support site with access to manuals, firmware, install guides, etc.
Go to https://www.netgear.com/support/
Type in your model number and from there it'll take you to the above.
Its a great resource to start with.