Connecting using WiFi Protected Setup in OS X
OS X doesn't support WPS. You'll have to manually enter the key. To do this, select your wifi network from the drop-down in the menu bar:



Then when prompted type in the wifi password:



If you don't know your password, you typically get it from your router's web interface (either via another computer, or connect your MacBook Pro via ethernet). To get there, enter http://192.168.0.1 or http://192.168.1.1 in your browser.