Most Windows 11 laptops/tablets from the last 5-7 years support Miracast. But let’s verify in 3 seconds:

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).

Miracast is essentially a "wireless HDMI" standard. It uses Wi-Fi Direct to create a direct, peer-to-peer connection between your Windows 11 device and a display (like a Roku, Amazon Fire Stick, Microsoft Wireless Display Adapter, or Smart TV).

: Miracast requires Wi-Fi to be ON , even if you are connected via Ethernet.