Windows 10: Has there been any resolution for the miracast not working after updating to from windows...

I have 3 laptops that I used to connect to a roku or samsung tv. after updating windows 10 pro from 1803 to 1909 and 2004 I can no longer connect to the 2 wireless displays. If I boot off of my 1803 disk, connects fine on both laptops. This issue has been going on for years.Is miracast not being supported anymore to cast the laptop to the TV? I don't see any resolution, all the questions have been lockedMy work around is to boot off a USB HDD with version 1803 when I want to use the TV as a display

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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.