Usually, this happens for one of three story-book reasons:
: 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
After reboot, try Win + K again.