You need to set up your router and computer for it to work.

The thing is, there is so many ways this is done, I am unable to assist. Some companies make it so you press a button at the same time on each, to sync then connect, then you can connect at will later (like how you connect an Xbox Controller). On others, you need a special code in order to connect.

Then there might be hardware issues, depending on age and make, where your card is unable to process the signal.

Best bet - Read the Instruction Manual.