Nighthawk X6S not connecting

Hi,

I've recently purchased a Netgear Nighthawk AC3000 and I am having issues setting it up. I've gone through the setup process however when I try and connect to the Extender through the Netgear app it doesn't recognise the network.

When I open my WiFi settings it only shows my Sky WiFi and not the Netgear WiFi. All the correct lights are on and working on the Netgear Extender. When on the main page of the Netgear app under the Network App it shows green lights on my Internet, router and Extender. I've tried resetting my router and the Extender and also redoing the setup process however I seem to be stuck in a loop and not sure what I am doing wrong.

Any help would be much appreciated.

Thank you