The Cast feature in Windows 11 allows you to wirelessly project your screen to a compatible TV, monitor, or another Windows device using Miracast. It’s commonly used for presentations, media streaming, or extending your display without cables.
If Windows 11 Cast is not working, you may see errors like “Device not found,” “Your PC doesn’t support Miracast,” connection failures, or screen mirroring that disconnects frequently. These issues are typically caused by incompatible hardware, outdated display or Wi-Fi drivers, disabled wireless display features, firewall restrictions, or network configuration problems.
If Cast is not working on your Windows 11 PC, follow the step-by-step troubleshooting guide below.
How to Fix Windows 11 Cast Not Working
Work through each solution in order. After completing a step, try casting again.
1. Check If Your PC Supports Miracast
Not all devices support wireless display.
- Press Windows + R.
- Type:
dxdiag - Press Enter.
- Click Save All Information.
- Open the saved text file.
- Look for Miracast in the report.
If it says Available, your PC supports Miracast.
If it says Not supported, casting will not work without additional hardware.
2. Ensure Both Devices Are on the Same Network
Casting requires both devices to be connected to the same Wi-Fi network.
- Press Windows + I.
- Go to Network & Internet.
- Confirm you are connected to Wi-Fi.
- Check that your TV or receiving device is connected to the same network.
If using Ethernet, ensure Wi-Fi is enabled for Miracast compatibility.
3. Enable Wireless Display Feature
The Wireless Display component may not be installed.
- Press Windows + I.
- Go to Apps > Optional features.
- Click View features next to Add an optional feature.
- Search for Wireless Display.
- Select it and click Install.
- Restart your PC.
This installs required casting components.
4. Update Display and Wi-Fi Drivers
Outdated drivers are a common cause of casting failures.
- Press Windows + X.
- Select Device Manager.
- Expand Display adapters.
- Right-click your GPU.
- Select Update driver.
- Repeat for Network adapters (Wi-Fi driver).
- Restart your PC.
For best results, download drivers directly from your device manufacturer.
5. Turn On Network Discovery
Casting requires network discovery to be enabled.
- Press Windows + R.
- Type:
control - Press Enter.
- Go to Network and Sharing Center.
- Click Change advanced sharing settings.
- Turn on:
- Network discovery
- File and printer sharing
- Save changes.
After enabling, try casting again.
6. Restart Required Services
Miracast depends on specific Windows services.
- Press Windows + R.
- Type:
services.msc - Press Enter.
- Ensure the following services are running:
- Function Discovery Provider Host
- Function Discovery Resource Publication
- SSDP Discovery
- UPnP Device Host
- Set them to Automatic if needed.
- Restart your PC.
These services help devices detect each other.
7. Disable Firewall Temporarily (Test Only)
Firewall settings may block casting.
- Press Windows + R.
- Type:
control firewall.cpl - Press Enter.
- Click Turn Windows Defender Firewall on or off.
- Temporarily disable it for Private networks.
- Test casting.
If casting works, re-enable the firewall and allow Wireless Display through it.
8. Reset Network Settings
Corrupted network configuration can prevent casting.
- Press Windows + I.
- Go to Network & Internet > Advanced network settings.
- Click Network reset.
- Select Reset now.
- Restart your PC.
You will need to reconnect to Wi-Fi afterward.
9. Check Projection Settings on Receiving Device
If casting to another Windows PC:
- On the receiving PC, press Windows + I.
- Go to System > Projecting to this PC.
- Ensure it is configured to allow connections.
- Set availability to Available everywhere on secure networks.
Incorrect projection settings can block incoming connections.
10. Install Windows Updates
Outdated Windows builds may contain Miracast bugs.
- Press Windows + I.
- Go to Windows Update.
- Click Check for updates.
- Install available updates.
- Restart your PC.
System updates often improve wireless display stability.
Conclusion
If Windows 11 Cast is not working, the issue is typically caused by unsupported hardware, outdated drivers, missing Wireless Display features, network configuration problems, or firewall restrictions. In most cases, updating drivers and installing the Wireless Display optional feature resolves the issue quickly.
By carefully following the troubleshooting steps above, you should be able to restore casting functionality and wirelessly project your screen without interruption. If Miracast is not supported by your hardware, using an external casting device may be necessary.
