If you want to dive deeper into a specific step, please let me know: What does your computer use?
What (e.g., Samsung TV, LG TV, Roku) are you casting to?
The "Your device doesn't support Miracast" error is rarely a death sentence for your setup. It is almost always a communication breakdown between your Graphics Processing Unit (GPU) and your Network Interface Card (NIC). your device doesn t support miracast windows 11
Here is what the entry can tell you:
Because Miracast works via Wi-Fi, your wireless network adapter driver is just as important as your graphics driver. If you want to dive deeper into a
Her laptop, a slim model she’d bought two years earlier, ran Windows 11. She clicked Settings → System → Display, scrolled to “Multiple displays,” and chose “Connect.” The quick-action pane scanned the air for the TV. A tiny blue dot pulsed. Then a single line of text blinked her confidence away: Your device doesn’t support Miracast.
Miracast is a wireless technology that allows your Windows 11 computer to mirror its screen to an external display over a Wi-Fi network. Think of it as an invisible HDMI cable. It is almost always a communication breakdown between
This is the most common fix. The "Wireless Display" is an optional feature that must be added to your system.
Look at the value for your Wi-Fi adapter. Miracast requires NDIS version 6.30 or higher . If your version is lower, your Wi-Fi hardware is too old to support wireless projection. 🛠️ Step-by-Step Fixes for Windows 11
Wait for the progress bar in the bottom-left corner to finish loading. Click the button at the bottom. Save the text file ( DxDiag.txt ) to your Desktop.