Being a total greenie I'm having difficulty setting up the unit in another part of the house. It was connected to the modem (Huawei569b) by ethernet cable but I now need it as wifi. Issue is the settings won't allow me to change from ethernet! Normally you'd click and select Ethernet or WiFi but for some weird reason it's stuck on ethernet!!

 

Clearly I'm a useless old bloke in my 80's so would appreciate your help please.