Windows 10: Miracast not Working

Hi,I have Lenovo Legion 7 laptop. I have been trying to cast my laptops screen to my Samsung QN90D TV. I tried almost everything from the internet solutions for this for hours. I was able to cast my laptop's screen via Samsung's Easy Connection software wirelessly. So definitely, my laptop is capable of casting to my TV. However, this software doesn't work, once you use VPN. Also there is blob that you cannot get rid of on the screen.I tried resetting network, updating all the drivers for Wifi and display driver, unplugging router, TV and my laptop and plugging in them again. Nothing works. I

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Does Miracast support 4K?

Hello,

We suggest that you check with the manufacturer of the 4k display device that you are using if it is certified to work with Miracast. If your display device is certified to work with Miracast, then check if your PC device supports Miracast. You may do so
by following the steps below:

• Click Start, then go to Settings >
  Projecting to this PC.
• Check if your device supports Miracast.

Regards.

 

Miracast Windows 10 dxDiag "not Available"

Let me suggest you to contact the manufacturer of Miracast. To contact the manufacturer, please follow the steps below:

• The name of the OEM + “contact information”
• The name of the OEM + “PC support”

Regards.

 

Miracast stopped working

Hi Gina,

Issues with Miracast are usually resolved by installing the latest drivers for your PC and the latest firmware for your wireless display or Miracast adapter. To update firmware on your wireless display or adapter, go to the Support section of the manufacturer's
website, search on your specific device, and follow their instructions to download and install that firmware. You can also check the Windows Store to see if there’s an app from the manufacturer of your wireless display or Miracast adapter that updates firmware.

And, we would also suggest that you try performing the suggested troubleshooting steps on this thread and check if it works for you.

Regards.