Connect to the Internet using Wi-Fi
If you’re within range of a Wi-Fi network, you can try to join it.
If you don’t see a Wi-Fi icon in the menu bar, choose Apple menu > System Preferences, click Network, select Wi-Fi in the services list, then select “Show Wi-Fi status in the menu bar.”
To join a public network, click the Wi-Fi icon in the menu bar, then choose the network you want to join.
If the network you’re joining is protected by a password, you need to enter it before you can join the network.
To join a hidden network, click the Wi-Fi icon then choose Join Other Network.
You need to know the hidden network’s name, security protocol, and password to join it.
If you’re connecting to an AirPort Base Station or AirPort Time Capsule, but it can’t connect to the Internet, use AirPort Utility to set up the wireless device to connect to the Internet.