Troubleshooting

  • A. If you experience lag or pixelization while casting:

    Make sure your Windows® laptop and the ScreenCast dongle software version and FW version are up to date.

    Make sure the ScreenCast dongle has a 5V1A power input.

    Make sure the distance between the laptop and the ScreenCast dongle is within 7 meters.

    Miracast™ operates on the 5GHz band, which is less likely to experience interference. If you experience lag or pixelation, it may be due to interference in the same environment, possibly because the device is connected to the 2.4GHz band. Here are some methods to help avoid interference:

    Method A
    Step 1:

    Keep your device's WiFi® on, but disconnect it from the WiFi® network, and then try Miracast™ again.
    Check if the ScreenCast dongle is using the 5GHz band or 2.4GHz on the top of the startup screen.

    Step 2:

    If it's connected to the 2.4GHz band, please go back to Step 1 to ensure your device is not connected to any WiFi® network. Then, retry Miracast™ to allow the device to re-select the frequency band until it connects to the 5GHz band.

    Method B

    Another way to ensure a connection to the 5GHz band is to connect your device's WiFi® to a 5GHz router with a strong signal, then try Miracast™.

    Method C

    If Method A & B do not work, reduce the distance between your device and the ScreenCast so that it is less than 5 meters.

    Method D

    Delete the old connection settings. Go to Bluetooth® & Devices, remove the ScreenCast from the Wireless Display and Dock, and then reconnect via Miracast™.

    Method E

    Note: This method is intended for IT Administrators to configure network frequency settings. It may be challenging, but it can have immediate results.
    Use WiFi® analysis software to identify the frequency band with the least interference, and connect the computer to the router on that frequency. The computer is highly likely to use the same frequency for Miracast™. For example, in the image below, frequency band 165 is used by only one router. It is recommended to connect the computer to that router, or switch the original router to the 165 frequency band.

  • B. If your connection failed:

    Make sure your Windows® laptop and the ScreenCast dongle software version and FW version are up to date.

    Make sure the ScreenCast dongle has a 5V1A power input.

    Make sure the distance between the laptop and the ScreenCast dongle is within 7 meters.

    Method A

    Reboot your Windows® laptop and Screencast dongle. And then try using Miracast™ again.

    *Three ways to restart ScreenCast: (1) Unplug and then plug back in the ScreenCast USB™. (2) Switch off and then switch on the button on the ScreenCast. (3) Use the Windows® app to restart remotely.

    Method B

    Delete the old connection settings. Go to Bluetooth® & Devices, remove the ScreenCast from the Wireless Display and Dock, and then reconnect via Miracast™.

    Method C

    If method A & B do not fix the issue, please ask the IT Administrator to check if any firewall settings have been configured. Any non-Microsoft® default firewall settings may cause the Miracast™ to fail in detecting the device.

  • C. Windows® laptop continues to disconnect from the ScreenCast:

    Make sure your Windows® laptop and the ScreenCast dongle software version and FW version are up to date.

    Make sure the ScreenCast dongle has a 5V1A power input.

    Make sure the distance between the laptop and the ScreenCast dongle is within 7 meters.

    Miracast™ operates on the 5GHz band, which is less likely to experience interference. If you experience lag or pixelation, it may be due to interference in the same environment, possibly because the device is connected to the 2.4GHz band. Here are some methods to help avoid interference:

    Method A

    The WiFi® environment will affect the performance of the Miracast™.

    Step 1:

    Keep your device's WiFi® on, but disconnect it from the WiFi® network you are currently connected to, and then try the Miracast™ again. Check if it's using the 5GHz band or 2.4GHz on the top of the startup screen.

    Step 2:

    If it's connected to the 2.4GHz band, please go back to Step 1 to ensure your device is not connected to any WiFi® network. Then, retry the Miracast™ to allow the device to re-select the frequency band until it connects to the 5GHz band.

    Step 3:

    Please keep the laptop disconnected from the WiFi® network and verify if the Windows® laptop is still disconnected from the Screencast dongle.

    Step 4:

    If the issue differs from when the laptop is connected to the WiFi®, please ask your IT Administrator to check the laptop and WiFi® settings environment.

  • D. You press the Windows® Key + K, but the ScreenCast name is not found:
    Step 1:

    Ensure your device's WiFi® is turned on.

    Step 2:

    Please wait 5-10 seconds. The ScreenCast needs to broadcast multiple protocols, including AirPlay®, Miracast™, and TX, so it may take longer for the device to detect the ScreenCast.

    Step 3:

    If the ScreenCast is still not found, try restarting both your device and the ScreenCast.

    *Three ways to restart the ScreenCast: (1) Unplug and plug back in the ScreenCast USB™. (2) Switch off and then switch on the button on the ScreenCast. (3) Use the Windows® app to remotely restart the ScreenCast.

    Step 4:

    If the ScreenCast is still not found, please ask your IT Administrator to check whether any firewall settings have been configured. Non-Microsoft® default firewall settings may prevent the Miracast™ from detecting the device.
    Alternatively, please refer to Section E to check whether or not your device supports the Miracast™.

  • E. If you see the error message "This device does not support Miracast":

    Check the system's compatibility:

    Step 1:

    Press Windows® + R，type dxdiag, and press OK.

    Step 2:

    Click Yes to access the DirectX Diagnostic Tool (only required for the first time).

    Step 3:

    Click Save All Information, and save the results as a text file (.txt).

    Step 4:

    Open the text file and search for Miracast™ to check if your device supports Miracast™
    Supported Available, with HDCP - indicates your device supports Miracast™.
    Not Available - indicates your device doesn't support Miracast™.

    Step 5:

    If your device indicates it supports Miracast™, please ask your IT administrator to check if any firewall settings have been configured. Any non-Microsoft® default firewall settings may cause Miracast™ to fail in detecting the device.