1) Verify screen mirroring of Roku is configured/working properly: A) Settings/System/Screen mirroring/Screen mirroring mode=Prompt. B) Settings/System/Screen mirroring/Screen mirroring devices/Always blocked=none. C) Settings/System/Advanced system settings/Device connect=Enabled.
Miracast is a wireless display standard designed for mirroring a smartphone, tablet, or PC's screen to a television. For us to understand your concern better, we'd like to ask a few questions: Were there any changes, recent updates, and newly installed applications on your device that may have affected your computer's performance?
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