Complete Guide to Wireless Screen Mirroring Connection Issues: Comprehensive Troubleshooting from DLNA to Multi-Screen Interaction

Wireless screen mirroring technology is convenient, but connection issues may occasionally occur. Whether it’s DLNA casting or multi-screen interaction mirroring, this guide helps you quickly troubleshoot and restore smooth connectivity.

Issue 1: DLNA Cannot Find Devices

Cause 1: Devices on different networks

Solution: Ensure your mobile phone and TV are connected to the same Wi-Fi network. Also, confirm that device isolation is not enabled on the network (a common setting in corporate/hotel networks).

Cause 2: DLNA not enabled on the device

Solution: Access your TV’s “Multi-Screen Interaction” or “Media Sharing” settings, and turn on the relevant DLNA function.

Issue 2: Multi-Screen Interaction (Mirroring) Cannot Find Devices

Cause 1: Protocol mismatch

Solution: For Android phones, try the Miracast protocol; for iPhones, you must use the AirPlay protocol. Verify that the receiving device (TV/mirroring adapter) supports the corresponding protocol.

Cause 2: Compatibility issues with old devices

Solution: If you are using a device based on the outdated WiDi technology, try updating its drivers. Alternatively, use a universal screen mirroring device to improve compatibility.

Issue 3: Connected Successfully but with Lag or High Latency

Cause 1: Wi-Fi signal interference or weakness

Solution: Connect the wireless screen mirroring device to the 5G Hz Wi-Fi band (less prone to interference). Also, keep the transmitting device (phone/computer) close to the receiver to strengthen the signal.

Cause 2: Insufficient network bandwidth

Solution: Pause other devices that are downloading files or playing high-definition videos—these activities consume large amounts of bandwidth and cause mirroring lag.

Universal Troubleshooting Rhyme

First check if networks are the same; then verify protocol compatibility. Restart devices to clear cache; firmware updates must be remembered.