Sometimes a new driver breaks Miracast. If the problem started after a Windows Update:
Go to Settings > Network & internet > Advanced network settings > Network reset . This will reinstall your network adapters and can clear out corrupted configurations. What to do if your PC truly doesn't support Miracast? your device doesn t support miracast windows 11
If your hardware is compatible but the feature isn't working, try these steps: Sometimes a new driver breaks Miracast
: Ensure "Wireless Display" and the "Connect" app are allowed through the Windows Defender Firewall If your hardware is confirmed incompatible through , you can still project your screen using a physical Miracast adapter (dongle) plugged into your display's HDMI port Microsoft Support What results did you see for NDIS version when running the diagnostic commands? your device doesn t support miracast windows 11