Troubleshooting Black Screen with Miracast on Windows 11

Experiencing a black screen while using Miracast on Windows 11? Here are some effective ways to resolve this issue.

How to Fix Connections to Wireless Displays or Docks in Windows 11?​

1. Ensure Your Device Supports Miracast​

• Check Miracast Support:
  • Press the Windows logo key + K. If your device doesn't support Miracast, a message will say you need to connect a cable to cast to an external display.

The first step in troubleshooting is ensuring your device supports Miracast. If it doesn't, you may need an alternative solution, such as an HDMI cable.

2. Reset the network settings​

• Press Windows + I to open Settings, go to Network & Internet from the navigation pane, and click on Advanced network settings.
  
  
  
  
• Click on Network reset.
• Click the Reset now button.
  
• Finally, click Yes in the prompt and confirm the change.
• Reboot the PC for the changes to come into effect and again connect wirelessly to the display.

3. Verify Display Supports Miracast​

• Check Display Compatibility:
  • Ensure your wireless display supports Miracast and is turned on. Refer to the manual or the manufacturer's website for compatibility.

Your display device must support Miracast. If not, consider getting a Miracast adapter that plugs into the display’s HDMI port.

4. Install the Wireless Display App (Windows 11)​

• Install Wireless Display App:
  • Type wireless display in the search box on the taskbar, select it in the list of results, and install the app if it’s not already installed.

Ensuring the app is installed helps your PC communicate properly with the display device.

5. Update Device Drivers and Firmware​

• Update Drivers and Firmware:
  • Visit the support section of your display’s manufacturer website for the latest drivers and firmware updates.
  • Alternatively, search for the manufacturer's app in the Microsoft Store, which may help with updates.

Keeping your drivers and firmware up to date ensures compatibility and can resolve many connectivity issues.

6. Restart Devices​

• Restart Both Devices:
  • Restart your PC.
  • Turn off your wireless display, wait a few seconds, and turn it back on.

Restarting both devices can resolve many minor issues by refreshing the connection.

7. Remove and Reconnect the Wireless Display​

• Remove the Wireless Display:
  • Open Settings.
  • Go to Bluetooth & devices > Devices.
  • Under Wireless displays & docks, click More options (three vertical dots) next to the device you want to remove, then select Remove device > Yes.
• Reconnect the Wireless Display:
  • Try reconnecting the wireless display through the Connect or Cast options in your settings.

Removing and reconnecting the device can reset the connection parameters and resolve lingering issues.

How to Fix Miracast Not Working on Windows 11?​

1. Confirm Display Compatibility and Update Firmware​

• Check Display Compatibility:
  • Ensure the display device supports Miracast. Check the manufacturer's website or user manual.
• Update Firmware:
  • Visit the manufacturer's website to find and install the latest firmware updates for your display device.

Verifying and updating the firmware can resolve compatibility issues with older display models.

2. Enable Miracast in Windows​

• Enable Miracast:
  • Go to Settings > System > Display > Connect to a wireless display.
  • Ensure the Wireless display toggle is enabled.

Enabling Miracast in Windows settings allows your PC to search for and connect to wireless displays.

3. Check Firewall and Antivirus Settings​

• Disable Firewall/Antivirus Temporarily:
  • Temporarily disable any firewall or antivirus software.
  • Check if Miracast works. If it does, configure your security software to allow Miracast connections.

Firewall or antivirus software can sometimes block Miracast connections. Adjusting these settings can resolve such issues.

4. Restart Router​

• Restart Router:
  • Power off your router.
  • Wait a few seconds, then power it back on.
  • Try reconnecting via Miracast.

Sometimes, the router can cause connectivity issues. Restarting the router can resolve these issues by resetting the network.

5. Consider Alternative Methods​

• Use HDMI or DisplayPort:
  • Connect your PC to the display device using an HDMI or DisplayPort cable.

Using a wired connection provides a reliable alternative if Miracast continues to fail.

By following these detailed steps, you should be able to troubleshoot and resolve the most common issues with wireless displays and screen sharing in Miracast on Windows 11.