Set up a connection to the internet on Mac
Before you start setting up your internet connection, make sure you have the account information you received from your ISP. See Information you need to connect to the internet.
On your Mac, enter your connection settings into Network preferences, depending on the type of connection and service you have.
Ethernet with a DSL or cable modem: If you connect to the internet using Ethernet, either to a DSL or cable modem, or to a local area network (LAN) that’s already connected to the internet, enter your Ethernet settings in Network preferences. See Connect your Mac to the internet using Ethernet or Connect your Mac to the internet using a cable modem.
PPPoE: If you have a cable modem and use a Point-to-Point Protocol over Ethernet (PPPoE) account with your ISP, enter your PPPoE settings in Network preferences. See Connect your Mac to the internet using PPPoE.
Dial-up modem connections: If you use a dial-up Point-to-Point (PPP) modem connection, with an internal or external modem, a Bluetooth modem, or a Wireless Wide Area Network (WWAN) modem, enter your connection settings in Network preferences. See Connect your Mac to the internet using a dial-up modem.
Other settings: If you received other settings for your internet service account, such as proxy or WINS server settings, or special Ethernet settings, enter them in Network preferences.