In the bottom right corner you will see an icon somewhere near the speaker icon. If you hover your mouse cursor over it it will say something like "Wireless Networks Available". Click on this icon. If your router is switched on and the lamps are all blue it will probably be at the top of the list and say something like BT Hub 3 -ABCD. Click the one that corresponds to your BT HUB, You will then be asked to enter your wireless key, this will something like ab123c4567. Once entered it should connect and stay connected unless you disconnect it yourself.