Wait a few seconds for the tool to gather your system data, then click . Save the DxDiag.txt file to your Desktop.
: The most reliable, latency-free physical option.
Turn off any active VPN connections before trying to project.
If the dxdiag report confirms your hardware is unsupported, you aren't completely out of luck. You can use a that plugs into your USB port, or switch to a different protocol like Google Cast (via Chrome browser) or a physical HDMI cable . If you'd like to troubleshoot further, tell me: What is your laptop or desktop model ? your device doesn t support miracast windows 11
If your hardware is compatible but still failing, consider these solutions: Fix connections to wireless displays or docks in Windows
This keeps your files and apps but rewrites every system file.
Expand , right-click your GPU (Intel, AMD, or NVIDIA), and select Update driver . Choose Search automatically for drivers . Wait a few seconds for the tool to
Leave the checkbox for "Attempt to remove the driver for this device" (unless you have a backup driver downloaded). Click Uninstall .
Windows 11 requires a specific optional feature to be installed for wireless projection. Open and click on Apps . Select Optional features . Look for Wireless Display in the installed features list.
The Miracast error on Windows 11 stops wireless screen mirroring to external displays. It happens due to outdated drivers, wrong wireless settings, or unsupported hardware. Turn off any active VPN connections before trying to project
. Find "802.11 Wireless Mode" and ensure the value is set to 4. Check Network Settings
Right-click your wireless network adapter and select . Go to the Advanced tab.
Before making any changes, it's wise to quickly verify what your system reports about Miracast support.
What (e.g., Samsung TV, LG TV, Roku) are you casting to?
The error "Your device doesn't support Miracast" in Windows 11 occurs when your hardware or software stack fails to meet the three core requirements: a , a GPU driver with WDDM 1.3+ support , and the Wireless Display optional feature . 1. Verify Hardware Compatibility