Windows 10: Windows Surface Pro 7 won't Miracast to Roku TV TCL 55US5800

I'm trying to use the wireless display functionality of Windows 10 to mirror my Surface Pro 7 to my TCL Roku TV model 55US5800. I have used the TV as a wireless display for my previous HP Envy 17 u2713-cl laptop and also my OnePlus 3T Phone without issue.


After pressing Win + P on my Surface, I select "Connect to a Wireless Display". I then choose "Roku TV" from the list of available devices. The Surface creates a dialog saying it is attempting to connect and the TV switches to a purple screen indicating it is trying to stream video from a wireless source. The TV then reports "Starting video from... <my login name>" but then kicks me back to the TV menu's home screen. I have noticed that the Surface screen refreshes after this fails, as though the graphics adapter were resetting itself.


I have tried deleting and reinstalling the driver for the "Roku TV" found in Device Manager as well as whatever other relevant drivers I could identify. I saw one recommendation to delete the "Mircast driver" but the only thing I see like that is a driver labeled "Roku TV" under "Miracst devices" in Device Manager.


Any suggestions as to what I might try? Unfortunately, being able to wirelessly project my display is 100% essential to my current business and I am very disappointed that this didn't just work.


Thank You,


Renee Roman

:)

 

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