📋 What you'll need
An Ethernet cable (Cat6 or better)
Available Ethernet port on each device
⚠️ Important: The Luna Display hardware will still need to be plugged into your primary computer when using a cable to connect!
What if one of my computers only has USB-C ports?
You can use a USB-C to Ethernet adapter. Here's one that we've tested: Amazon Basics Aluminum USB-C to RJ45 Gigabit Ethernet Adapter
💡 Note: We have found that Ethernet is the best wired connection type for PC-to-Mac mode. Thunderbolt connections can be inconsistent depending on what kind of Windows computer you're using.
How to connect
🍏 Mac-to-Mac
🍏 Mac-to-Mac
⚙️ Connect your cable
Plug an Ethernet cable into your primary and secondary Macs.
Open the Luna Display app on your primary Mac and the Luna Secondary app on your secondary Mac.
Your devices should automatically connect via the Ethernet cable.
🎯 Confirm Luna is using Ethernet
On your Primary Mac, open the Luna Display app.
Look in the upper right corner of the Luna Settings window — if Ethernet is active, you’ll see a cable icon with the word "Ethernet" next to it, like the image below.
📍 Prioritize Ethernet in the Luna Display Settings
On the primary Mac, open the Luna Display app
Click Luna Display in the Mac menu bar (top left of your desktop)
Select Settings...
Click on the Mac-to-Mac tab
Change the dropdown menu labeled "Mac-to-Mac Wired Connection" to "Connect via Ethernet Only"
🪟 PC-to-Mac
🪟 PC-to-Mac
⚙️ Connect your cable
Plug an Ethernet cable into your PC and Mac.
Open the Luna Display app on your PC and the Luna Secondary app on your Mac.
Your devices should automatically connect via the Ethernet cable.
🎯 Confirm Luna is using Ethernet
On your PC, open the Luna Display app.
Look in the upper right corner of the Luna Settings window — if Ethernet is active, you’ll see a cable icon with the word "Ethernet" next to it, like the image below.
📍 Prioritize Ethernet in the Luna Display Preferences
On the primary Mac, open the Luna Display app
Click on the hamburger menu ≡ in the top left of the primary Luna window
Select Preferences
Click on the Connectivity tab
Change the dropdown menu labeled "Allowed Non-USB network interfaces" to "Connect via Ethernet Only"
Can I use an Ethernet switch or hub with my devices?
⚠️ Yes, but the results of using a switch can vary, so we cannot guarantee that you will get the same performance that you would without a switch or hub. The more devices you have connected to a switch or hub, regardless of quality, the more likely your connection is to degrade.
Trouble connecting?