3uAirPlayer is a screen mirroring tool designed for streamers and professionals. It allows you to mirror your iPhone or iPad to a Windows computer using three connection methods:

AirPlay (LAN), USB cable, or Remote Cast.

After mirroring, you can stream your screen to third-party live platforms or use it for office presentations, online teaching, or watching videos on a larger display.

When your phone cannot find the receiving device over the LAN:

1. Automatic discovery: 3uAirPlayer automatically scans for available devices on the same local network.

    

2. Check your network connection
   Make sure both your iPhone/iPad and the computer running 3uAirPlayer are connected to the same Wi-Fi network.

    

   

3. Verify subnet consistency
   Even when connected to the same router, devices on different subnets cannot detect each other.
   For example, your phone may connect to WiFi_5G, while your computer connects to WiFi_2.4G, placing them on different subnets.

Example:

1. Computer IP: 192.168.0.156

2. Phone IP: 192.168.1.123
   These belong to different subnets, so the phone cannot find the computer.

Recommended fix: Connect your computer directly to the router using an Ethernet cable or ensure both devices are on the same Wi-Fi band.

✅ Tip: Restart both devices after adjusting the connection to refresh network discovery.