Troubleshooting the Thunderbolt ConnectionĪ Thunderbolt bridge needs to be established between your Macs before Luna can connect using a Thunderbolt connection. Create or switch to a new network location on your Mac.įor more help, check out Apple's support article for troubleshooting an Ethernet connection on a Mac.Make sure both ends of the Ethernet cable are fully connected to each Mac, router, or access point.

You will need to check this setting on both your primary and secondary devices to confirm that the Ethernet connection was set up properly. If your devices are connected via Ethernet, the Status will change to Connected and the left side menu panel will either say 'Connected' or 'Self-Assigned IP' under the USB/LAN option. On your primary Mac, open Network Preferences by going to System Preferences > Network, or by clicking on the Wi-Fi symbol in your Mac's top menu bar and selecting 'Open Network Preferences'. In the Mac-to-Mac tab, change 'Allow any network interface' to your preferred connection method: Connect via Wi-Fi only, Connect via Ethernet only, or Connect via Thunderbolt only. In your Mac's top menu bar, click on Luna Display then Preferences. You can also adjust Luna's settings so that Luna will only connect over an Ethernet or a Thunderbolt connection, instead of Wi-Fi. Luna should connect automatically if it detects an active Ethernet or Thunderbolt connection between your Macs. Troubleshooting the Thunderbolt Connection Mac-to-Mac Mode: Connect via Ethernet or Thunderbolt Only You should see that your connection type is indicated as Ethernet on the Luna primary app (as seen below).

Once both devices are connected, launch both Luna apps. Connect your devices with an Ethernet cable. In the Connectivity tab, under 'Allowed Non-USB network interfaces' choose 'Allow any network interface (default)' as your preferred connection method. In the Luna PC app, click on the '☰' icon and click on Preferences. If you are using Luna in PC-to-Mac mode but are unable to establish an automatic connection using an Ethernet cable, here are some steps to take to ensure that Luna connects via Ethernet only, instead of Wi-Fi. Mac PC-to-Mac Mode: Connect via Ethernet Only Why is my Ethernet or Thunderbolt connection not working?

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