Complete Guide to Wireless Screen Mirroring Connection Issues: Comprehensive Solutions from Undetectable Devices to Freezing

Wireless screen mirroring technology is convenient, but connection issues may occasionally occur. Whether Google Cast fails to detect devices or AirPlay mirroring freezes, this guide helps you quickly “resolve obstacles”.

1. General Troubleshooting Process

Step 1: Check the Network

  • Symptom: No devices can be detected by any protocol.
  • Solution: Ensure the transmitting device (phone/computer) and receiving device (TV/screen mirroring adapter) are connected to the same Wi-Fi network, and the network has not enabled “AP isolation” (a function that blocks device-to-device communication).

Step 2: Restart Devices

  • Symptom: Unstable connection or unexpected disconnection.
  • Solution: Restart your phone, computer, router, and screen mirroring receiving device in sequence to eliminate temporary system glitches.

2. Protocol-Specific Troubleshooting

Google Cast Issues: “Cast” Icon Grayed Out or Device Offline

  • Solution 1: Check if devices like Chromecast are powered on and connected to the network (verify via the device indicator light).
  • Solution 2: Update the Google Home app to the latest version, as outdated apps may cause compatibility problems.

AirPlay Issues: Undetectable AirPlay Devices or Connection Failure

  • Solution 1: Confirm the receiving device supports AirPlay and has AirPlay functionality enabled (check the device’s network or display settings).
  • Solution 2: Ensure the Apple device (iPhone/iPad/Mac) is not too far from the receiving device—keep the distance within 10 meters to avoid signal weakening.

3. Freezing or High Latency After Connection

Cause

Wi-Fi interference (from devices like microwaves, Bluetooth speakers) or insufficient bandwidth (occupied by other devices).

Solutions

  • Connect the wireless screen mirroring adapter to the 5G Hz Wi-Fi band—this band has less interference than the 2.4G Hz band.
  • Pause other devices that are downloading files or streaming videos, as they consume large bandwidth and cause latency.
  • Place the screen mirroring device as close to the receiver as possible to strengthen the wireless signal.
Remember this mnemonic: First check network consistency, then verify device power status, confirm protocol compatibility, and switch frequency bands to solve problems.