Whenever I hit connect on my Windows 10 PC, my Roku TV shows a connection screen that gets stuck on 40%, and then my PC will say connection failed. My PC is Miracast compatible, the PC and TV are on the same wifi network, and I turned on "Enable Device Connect" and have "Always allow" for Screen mirroring mode on the TV. The fact that it shows it attempting to connect makes me think something is wrong with the TV. It's not a distance issue, I tried it with my TV right next to my PC.
The TV is a Hisense 6Series-50
Serial number X0190085G88F
Software version 12.5.5 build 4174-CH