Can you mirror or cast from a windows 10 PC to a roku player? If so what hardware does the PC need to make the connection? Bluetooth or over the network?
Only one Roku (2 XS) ever had Bluetooth, and it was only for its remote. Screen mirroring or casting has always been hit or miss with Windows. Usually a miss. Windows uses Miracast, which has some specific hardware requirements that you should be able to find online. But as I said, it does't always with with a Roku.