Cant connect to LG QNED TV by Miracast with my Surface Pro 11g

Hi Jan Horecký,

I understand how this can seem confusing since the TV clearly detects the Surface and another PC connects without any problem. I see that you’ve done throughout testing, and the Q&A Assist has also given solid suggestions. So if the issue persists even after trying those, maybe consider another possibility:

Disclaimer: Be mindful that this is only my personal speculation built on similar reports gathered from other users, NOT confirmation.

The Surface Pro 11 uses a Snapdragon processor with Qualcomm graphics and Wi‑Fi Direct. Its Miracast implementation differs slightly from Intel-based PCs. There’s a chance of Miracast handshake issues between your Snapdragon-based Surface and LG TV. To test this theory:

• If possible, try Miracast from another device to the Surface
• For example, use a (Android) phone to cast to your Surface Pro 11.
• If that fails, it further confirms a partial incompatibility on the Surface.
• Below’s something you can also check out to see if it helps improve the situation:

1 - Fully update Surface firmware

• Open the Surface app (often pre-installed)
• Check all firmware and driver updates offered
• Miracast fixes are delivered via firmware, not Windows settings

2 - Disable advanced TV-side features temporarily (if any)

• Screen optimization / AI picture features
• Any “fast startup” or quick resume options

3 - Other alternatives if Miracast not working

• Use Wireless HDMI adapter
• Use HDMI / USB‑C to HDMI cable
• Use LG screen sharing apps, if supported.

Unfortunately, if this is actually a mismatch with Surface / Snapdragon devices and third‑party TVs, there’s often nothing to change from the user-side. I hope this answer can show you another perspective on this.

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Try the following Surface- and Miracast-specific steps in order, focusing on the Surface Pro 11 since the TV works with another laptop:

1. Confirm Miracast support and basic settings

• On the Surface, press Windows logo key + K and confirm the LG QNED appears as a wireless display.
• Make sure Wi‑Fi is turned on on the Surface (even if using Ethernet) via the Network icon in the taskbar.
• Restart both the Surface and the TV once more after the changes below.

2. Update Surface firmware, drivers, and Windows Connection failures with wireless displays are often driver/firmware related.

• Open the Surface app.
  • In Help & support, check the update status.
  • If updates are available, select Check for updates to open Windows Update and install everything offered for the Surface (drivers, firmware, and OS updates).
• If the Surface app is not installed, install it from Microsoft Store, then repeat the steps above.
• After updates complete, restart the Surface and try Win + K → LG QNED again.

3. Update the LG QNED and Miracast firmware (if applicable)

• Ensure the TV’s firmware is up to date using the TV’s built‑in update mechanism.
• If using any Miracast dongle/adapter on the TV, update its firmware as well.

4. Remove and re-add the wireless display cleanly Since removing/re‑adding was already tried, do it again after updates and with the full removal path:

• Go to Settings → Bluetooth & devices → Devices.
• Under Wireless displays & docks, select the LG QNED (or Miracast adapter) and choose Remove device.
• Restart the Surface.
• Go back to Settings → Bluetooth & devices → Add device → Wireless display or dock and select the LG QNED.

5. Reinstall graphics driver on the Surface A faulty graphics driver can block Miracast negotiation.

• Select Search on the taskbar, enter device manager, then open Device Manager.
• Expand Display adapters.
• Right‑click the Intel graphics adapter (for example, Intel HD Graphics or similar) and select Uninstall device.
• Restart the Surface: Start → Power → Restart.
• After restart, Windows will reinstall the graphics driver automatically.
• Then go to Settings → Bluetooth & devices → Add device → Wireless display or dock and try connecting to the LG QNED again.

6. Reinstall Wi‑Fi driver on the Surface Miracast uses Wi‑Fi Direct; a problematic Wi‑Fi driver can cause exactly this “handshake then fail” behavior.

• Open Device Manager again.
• Expand Network adapters.
• Right‑click the Surface’s wireless adapter (for example, Intel® Wi‑Fi AX200/AX201, Marvell AVASTAR, or Qualcomm Atheros depending on model) and select Uninstall.
• Restart the Surface: Start → Power → Restart.
• After restart, Windows reinstalls the Wi‑Fi driver.
• Go to Settings → Bluetooth & devices → Add device → Wireless display or dock and connect to the LG QNED.

7. General wireless display troubleshooting on Windows 11 If it still fails:

• Confirm again that Wi‑Fi is on and that the Surface is not in Airplane mode.
• Make sure the Wireless Display optional feature is installed on the Surface if using it as a receiver in other scenarios, and ensure the LG QNED is set to accept screen sharing.
• Restart both the Surface and the TV once more.
• Remove the LG QNED from Settings → Bluetooth & devices → Devices and re‑add it as described above.

8. If the issue persists Because another PC connects fine, and the Surface sees the TV but fails at the connection stage even after driver/firmware updates and reinstalls, this points to a Surface‑side Miracast/driver issue. In that case, open a support case with Surface for Business so logs and hardware can be checked.

References:

• Fix connections to wireless displays or docks in Windows
• Screen mirroring and projecting to your PC or wireless display
• Troubleshooting Microsoft Wireless Display Adapter
• Troubleshoot connecting Surface to an external display
• Use the Microsoft Wireless Display Adapter
• Unable to cast a computer screen to a Surface Hub 2s - Microsoft Q&A