Receive and Broadcast Internet From The Same Computer
If you have a Mac outfitted with 2 wireless cards you can use that instead of an Airport Express to extend your wireless connection to your other nearby devices. Here’s How:
- Open System Preferences
- Click on the “Internet” tab
- Select the source of your internet connection in the “Share your connection from” pull-down menu
- Check the device you’d like to broadcast your signal from in the “To computers using” list
- (optional): Choose a name and security options for this ad-hoc network
- Click “Start”
Once running you will see your airport icon change to an arrow to indicate that you are broadcasting your connection:
This post was updated on August 10 to correct mistakes in the original post. Old instructions and images have been removed for clarity.