"Your device doesn't support Miracast" in Windows 11 often indicates a software configuration issue rather than a total lack of hardware capability Microsoft Learn
Find 802.11 Selection (or similar) and ensure it is set to Auto or Dual Band rather than a specific 5GHz or 2.4GHz frequency. 4. Add the "Wireless Display" Optional Feature
Miracast requires an active wireless adapter. If it is disabled or outdated, the feature will fail. Device Manager Network adapters , right-click your wireless card, and select Enable device : Right-click the same adapter and select Update driver Search automatically for drivers your device doesn t support miracast windows 11
. This error can appear even on devices that previously worked if a recent update installed generic drivers that lack Miracast's specific handshaking protocols. Microsoft Learn 1. Verify True Compatibility
Miracast relies on specific Wi-Fi configurations to function Turn on Wi-Fi "Your device doesn't support Miracast" in Windows 11
Change Network Profile: Ensure your network is set to Private. Open Settings > Network & internet > Wi-Fi, select your network, and change the "Network profile type" to Private.
Reset the Wireless Adapter: 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? If it is disabled or outdated, the feature will fail
If you absolutely cannot fix the driver issue (e.g., you have an ancient Wi-Fi card), buy a $20 Google Chromecast (uses different protocol) or software like AirServer ($20) which emulates a mirrored display via a different method.
Miracast uses Wi-Fi Direct. Even if your PC is connected via Ethernet, the Wi-Fi adapter must be turned on to establish the wireless handshake with the external display. 2. Update Graphics and Network Drivers Outdated drivers are the leading cause of this error. Right-click the Start button and select Device Manager.