How To Network Two Computers By Sharing Internet from a Mac

Connect the two computers with an Ethernet cable. Use an Ethernet cable to connect your two Mac computers to one another.
- If connecting a Mac to another Mac, you’ll need two Ethernet to USB-C adapters to plug into your Macs’ Thunderbolt 3 ports before you can connect them via Ethernet.
Open the Apple menu
. Click the Apple logo in the top-left corner of the screen. A drop-down menu will appear.
Click System Preferences…. You’ll find this option in the drop-down menu. Doing so opens the System Preferences window.
Click Sharing. It’s in the System Preferences window. A new window will open.
Check the “Internet Sharing” box. This option is on the left side of the window.
Click the “Share your connection from” drop-down box. It’s in the middle of the window. A drop-down menu will appear.
Click Wi-Fi. This option is in the drop-down menu.
Check the “Ethernet” box. Doing so shares your Mac’s Internet connection with the computer to which it is currently connected.

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