Use a Cable Connection
To fix fuzzy display issues when connected via WiFi, you may need to switch to a cable connection. While a strong and secure Wi-Fi network can sometimes provide acceptable performance, a direct cable connection remains the most reliable option for minimizing latency and ensuring consistent quality.
Recommended Cable Options (in order of preference):
Ethernet (can be used with an Ethernet to USB-C adapter if your computer doesn't have an Ethernet port)
Thunderbolt (can be used with a Thunderbolt 3 to Thunderbolt 2 adapter with a Thunderbolt 2 cable if one computer has Thunderbolt 2 and the other has Thunderbolt 3+)
USB-C to USB-C or USB-C to USB-A (only compatible with macOS 10.15+)
Why Cable Fixes This:
Provides 10-100x more bandwidth than WiFi
No interference or signal drops if the connection is active
Consistent, sharp display quality
Zero latency worries
If You Cannot Use Cable Right Now
Important: These WiFi optimizations may only provide minor improvements. Avoid using mobile hotspots or Windows Wi-Fi hotspots, as they lack the bandwidth and stability required for Luna Display. Even with great internet speeds, latency and connection reliability can still be impacted.
WiFi Optimization Steps
Step 1: Switch to 5GHz Network
Open WiFi settings on both devices and connect to your 5GHz network (not 2.4GHz). 5GHz provides much more bandwidth for better quality.
Step 2: Move Closer to Router
Place both devices in the same room as your router. Avoid walls and obstacles between devices and router. Distance significantly affects display quality.
Step 3: Reduce Network Congestion
Disconnect unnecessary devices from WiFi
Pause downloads/streaming on other devices
Close bandwidth-heavy apps on both devices
Remove any Bluetooth devices nearby (Bluetooth can interfere with 2.4GHz WiFi signals, but it is not used by Luna Display as a connection method).
Step 4: Lower Resolution
Open System Settings > Displays
Select your Luna Display
Choose "Scaled" if available
Try these resolutions in order:
1920 × 1080 (Full HD)
1680 × 1050
1440 × 900
Important Notes
If WiFi Optimization Helps "Slightly":
A slight improvement means the issue isn't fully resolved. We recommend a cable connection in this instance.
After Trying Everything:
If WiFi optimizations don't dramatically improve quality, a cable connection is the best solution, due to outside factors. Non-recommended methods like mobile hotspots and Windows Wi-Fi hotspots often lack the bandwidth and stability required for Luna Display, leading to laggy performance and unreliable connections.
Next Steps
Ready to switch to cable? Check our Connection Setup Guides for instructions on setting up USB, Thunderbolt, or Ethernet connections.