5 Ways to Fix the 'Device Doesn't Support Miracast' Error in Windows 11

If you're encountering the error message "Device Doesn't Support Miracast" while attempting to cast your phone or tablet screen onto a PC, it essentially means that Miracast technology is not supported by your device or there might be issues with the connection or drivers. This article will delve into some straightforward solutions to resolve the "Device doesn't support Miracast" error in Windows 11.

The Windows ecosystem has the Connect app to mirror your phone or tablet screens onto your PC. Miracast is a projection technology developed to wirelessly cast your screens onto a PC, doing away with the older HDMI system. The HDMI method necessitates numerous wires for connectivity, whereas Miracast employs Wi-Fi Direct, a protocol standard that allows devices to connect directly without the need for any additional medium.

The problem arises when users attempt to initiate the app for projection and encounter the error message stating, "This device doesn't support Miracast, so you can't project to it wirelessly." This issue could stem from various factors, such as network configuration issues, outdated drivers, or compatibility problems with the operating system.

Solutions to Fix the "This Device Doesn't Support Miracast" Error

The solutions aim to address the root causes of the issue. Attempt each solution sequentially to rectify the problem.

The solutions aim to address the underlying issues causing the problem and rectify the root cause. You can read this article from the Microsoft Community here to learn more.

Check Miracast Compatibility

Well, most modern PCs are compatible with Miracast technology. However, numerous updates and changes on an older device might hinder the software's performance. Therefore, it's advisable to check if the device is compatible before attempting any setup.

Steps to check compatibility:

Step 1. Manually open the Windows Terminal using the search box.

Step 2. In the terminal, type the command below and press "Enter."

Get-NetAdapter | Select-Object Name, NdisVersion

Step 3. If the Wi-Fi Ndisversion is 6.30 or higher, it indicates that the device supports Miracast. If it's lower, the issue might be caused by outdated drivers. Proceed to update your drivers to resolve this.

Connect Devices to a Single Wi-Fi Network

To make Miracast work on your device, both your phone and PC need to be connected to the same Wi-Fi network. If you're using an Ethernet cable, ensure your PC is connected to a nearby Wi-Fi network.

Step 1. Access the "Wi-Fi" connections through quick settings on the taskbar or via the settings menu.

Step 2. Verify your Wi-Fi network and connect the other device to the same network.

Step 3. Now try projecting the screen to the PC using the Connect app.

Configure Firewall and Network Protection Settings

Occasionally, the Windows Firewall might block the devices from projecting. This can occur if the firewall flags the device as suspicious. To troubleshoot this, try temporarily disabling the Windows Firewall for public networks. Once done, permit the device while you're screen casting. Afterward, you can re-enable the firewall for added security.

< strong >Steps to disable Windows Firewall:

Step 1. Press Windows + I or search manually to open the "Settings" app.

Step 2. Navigate to the Privacy and Security section.

Step 3. Click on "Windows Security" and navigate to the Firewall and Network Protection tab.

Step 4. Click on "Private Network" and disable the Microsoft Defender Firewall.

Test your Miracast after this; if it's functioning, it indicates that the defender is blocking it. Now, reactivate the Microsoft Defender Firewall and follow the steps below to configure the firewall settings.

Step 1. Search for "Windows Defender Firewall" using the search bar.

Step 2. Navigate to "Allow an app or feature through Windows Defender Firewall" and click on it.

Step 3. Locate Wireless Display, check both the "public" and "private" columns, and click on "Change Settings."

Step 4. Open the Connect app and ensure that it is allowed for both "public" and "private" networks. Click "OK."

Alter Wireless Mode Property and Value

If the default setting of your Wi-Fi adapter is configured for 802.11 b/g, it might lead to issues; therefore, modify the setting or alter the properties to rectify the error.

Step 1. Open Device Manager using the Search box.

Step 2. Expand the Network Adapters section, locate the Wi-Fi driver, and right-click on it.

Step 3. Click on "Properties" and go to the Advanced tab.

Step 4. Set Property to 802.11 Wireless Mode and Value to Dual Band. Click OK to save the settings.

Update or Reinstall the Wi-Fi Driver

If your system is not compatible with Miracast, even though you're running Windows 11, it might be because of outdated driver versions. There are steps we can take to resolve this issue. We can either update or reinstall the driver.

Step 1. Search for Device Manager in the Search box and open it.

Step 2. Expand the Network Adapters category and right-click on the Wi-Fi driver.

Step 3. Click on "Update" and verify if the casting is functioning properly or not.

Step 4. If it's not working, click on "Uninstall" and restart the system. The PC will automatically download the driver during the restart process.

Even after implementing all the solutions, if you're unable to cast your screen to your PC, you can troubleshoot the "This device doesn't support Miracast" error on your device. This will either resolve the issue or provide guidance on how to address the problem. For further clarification on the methods, consult this article from Windows Report.

Final Verdict can be translated into English as "Ultimate Judgment" or "Final Decision."

Windows utilizes the Miracast technology, developed in 2012, to mirror phone or tablet screens onto a PC. If you encounter an issue with Miracast, you can follow the troubleshooting steps to address it. These solutions will address all the potential causes of the error.

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