If there is no Ethernet option in Network Preferences on Mac Big Sur, try adding a network service on your Mac manually.īefore heading to the specific solution to each scenario of macOS Monterey Ethernet not working, it's best to restart Ethernet and the router, as we will explain next.If the Ethernet is unconnected with a yellow dot, your Mac may have been confused about its IP address.Try cleaning the Ethernet port or removing and re-adding Ethernet from the Network preference pane. If the Ethernet status shows as "Cable Unplugged", either the cable is not plugged in, or the router isn't responding.Try deleting and re-adding the Ethernet service to avoid misconfigurations. That rules out any problems with the Ethernet connection itself.
If the Ethernet status shows as "Connected" with a green dot, the service is active and connected.
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