① Select Internet Sharing to start-but you can’t check the box (yet). (You can’t select the checkbox itself until you’ve completed a few more steps.) Select Internet Sharing in the list on the left ①.The range and throughput of your Mac-created Wi-Fi network won’t be as good as what you would get from a stand-alone Wi-Fi router, such as an AirPort Express.But if you happen to have an Internet connection through another hardware port (a Thunderbolt or FireWire port, for example, or a USB-to-Ethernet adapter), it can share that connection. Your Mac can’t re-share an existing Wi-Fi connection.However, note the following qualifications: In other words, it acts as a software base station. If your Mac connects to the Internet via an Ethernet cable, it can create its own Wi-Fi hotspot to share that connection with another Mac, an iOS device, or any other device with Wi-Fi. Broadcast an iTunes Library in Your Home.Broadcast and Share Games and Game Stats.Broadcast Browser Tabs to Other Devices.Share iPhone Calls and Texts across Devices.Share Your iOS Device’s Internet Connection.Sync Calendars and Reminders with Others.Sync Calendars and Reminders across Devices.
