Connect your Mac to network devices
You can connect your computer to various network devices, such as a network hub, router or switch.
For example, here are some network devices and when you might use them:
A simple network hub: This type of hub might simply be a multiport Ethernet device that allows you to connect multiple computers and printers together.
A network router: A router is usually a more powerful network device that allows you to connect multiple computers using Ethernet and provide network services, such as DHCP and NAT.
A managed switch: A switch is often used to connect different network segments, or subnets, together to create a larger network. As the name implies, managed switches are often managed by a network administrator or IT department.
See the documentation that came with the device for information about setting it up.
If you’re having problems with a device connected to your computer, try turning it off, waiting a few minutes, then turning it back on. Wait until the device has started up completely before trying to use it. See Restart an external device.