Windows 10 Miracast Not Working: Mirroring Your Screen to a TV Wirelessly
Miracast lets a Windows 10 PC project its screen to a compatible TV or adapter without a cable. When Windows 10 Miracast not working, the TV does not appear in the Connect list, or the connection YYPAUS Resmi fails after a few seconds.
Miracast needs both devices to support it and to create a direct Wi-Fi link between them. The Wi-Fi adapter and graphics driver must both support wireless display.
Many smart TVs support Miracast under names such as Screen Mirroring or Screen Share, and the feature must be switched on before Windows can find them.
When it works, Miracast is a convenient way to show photos, presentations, or videos on a large screen without searching for the right cable.
Likely Reasons Behind the Problem
Miracast fails for these reasons:
- The PC’s Wi-Fi or graphics hardware does not support Miracast.
- Wi-Fi is turned off on the PC.
- The TV’s mirroring mode is not active.
- Drivers are outdated, or a VPN or firewall interferes.
Older desktops without Wi-Fi cannot use Miracast at all.
Simple Troubleshooting to Begin With
Prepare both devices.
- Turn on the TV’s Screen Mirroring or similar input.
- Make sure Wi-Fi is on in Windows, even if you use a cable for internet.
- Press Windows + K to open the Connect panel.
- Wait for the TV to appear, then select it.
- Move the PC closer to the TV if the connection drops.
Restarting both devices often clears failed connections.
Some TVs list the PC only for a short time after Screen Mirroring is opened, so start the TV’s mirroring mode first and then press Windows + K straight away.
Next-Level Steps
Check support and drivers.
- Press Windows + R, type dxdiag, select Save All Information, and open the saved file. Search for “Miracast” to see whether it says Available.
- Update the Wi-Fi and graphics drivers from the PC manufacturer.
- Disconnect VPNs and pause third-party firewalls during testing.
- Remove the TV from Settings > Devices > Bluetooth & other devices and add it again.
- Try another Miracast device or adapter to rule out the TV.
If dxdiag says Miracast is not supported, an HDMI cable or a streaming device is the best alternative.
Laptops on battery saver may limit Wi-Fi performance, which can cause mirroring to drop. Plugging in the laptop and switching to a performance power mode can make connections steadier.
A Word of Caution
Only connect to displays you own or are authorised to use. In public places, be aware that your screen may be visible to others. Turn firewall protection back on after testing.
Wrapping Up
Miracast depends on compatible hardware, working drivers, and the TV’s mirroring mode. Check support with dxdiag, update drivers, and keep devices close together.
For important presentations, test the connection in advance and keep an HDMI cable as a backup, since wireless display can be affected by busy Wi-Fi in offices and conference rooms.