This message was posted on behalf of Intel Corporation
Thank you for joining the Graphics Community. I am sorry to hear Roku is crashing.
The behavior you are describing seems to be related to a compatibility matter between Roku and Miracast, so in this specific case my recommendation is to get in contact with both Roku and the Micarast support in order review this behavior. Find their contact information here https://support.microsoft.com/en-us and https://support.roku.com/es-cr/index