How to Fix Miracast Wireless Display Not Working — Can't Connect to TV on Windows
Miracast failing, TV not found, or wireless projection disconnecting? Fix Miracast on Windows 10 and 11.
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Main Troubleshooting Guide
How to Fix No Audio or Sound →Complete symptoms, causes, and step-by-step solutions
Symptoms
You might be experiencing this problem if you notice:
- •"Your PC doesn't support Miracast" error
- •Connect to wireless display finds no devices
- •Connection to TV drops after a few seconds
- •Miracast connected but no picture on TV
- •Extreme lag when mirroring screen wirelessly
- •Win+K shortcut doesn't find any devices
Common Causes
- ⚠WiFi adapter doesn't support Miracast (needs WiFi Direct)
- ⚠WiFi driver outdated or missing WiFi Direct capability
- ⚠TV doesn't support Miracast
- ⚠VPN blocking WiFi Direct traffic
- ⚠Firewall blocking wireless display connections
Solutions
Solution 1: Check Miracast Compatibility
- 1Win+R → dxdiag → Save All Information → search for "Miracast"
- 2Should say "Available, with HDCP" or "Available"
- 3If "Not Available": your WiFi adapter doesn't support it
- 4Solution: Microsoft Wireless Display Adapter or HDMI cable
- 5Also check TV settings for Screen Mirroring option
Solution 2: Connect to Wireless Display
- 1Press Win+K to open Cast panel
- 2Ensure TV is in screen mirroring mode
- 3Samsung: Source → Screen Mirroring
- 4LG: Settings → Connection → Screen Share
- 5Roku: Settings → System → Screen Mirroring
- 6Fire TV: hold Home → Mirroring
Solution 3: Fix Connection Failures
- 1Update WiFi driver and GPU driver
- 2Disable VPN (blocks WiFi Direct)
- 3Toggle Airplane Mode ON → OFF to restart WiFi
- 4On TV: forget PC and re-pair
- 5Use 5GHz WiFi for better bandwidth
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