With different networking options available—ethernet, Wi-Fi, iPhone tethering, etc.—you may find yourself in a situation where you want your Mac to automatically select one type of connection over another. A Macworld reader finds themselves in that exact situation.
I’d like to connect to my grandma’s Wi-Fi connection so that I can use her printer. However, her internet connection is as slow as molasses, so I want to simultaneously use my iPhone’s tethering capability (via USB or Bluetooth, of course) to browse the internet.
macOS does let you prioritize network connections, so you can pick which adapter gets used first when your system tries to connect to local network and internet-connected resources.