Welcome to the Roku Community.
I understand the inconvenience this screen mirroring request caused you when streaming. You can define how an incoming screen mirroring request is handled by changing the screen mirroring mode on your Roku device. You can also remove a device that was added to the list of ‘Allowed devices’ or ‘Blocked devices’.
- Press Home on your Roku remote
- Select Settings
- Select System
- Select Screen mirroring
- After you open the screen mirroring settings, choose a setting to adjust.
If there is an upcoming request and you have a simple remote make sure you have a clear path and always be sure you can see the front of your Roku device to make a successful command. If you have a voice remote, try to re-pair the remote then check again.
To help troubleshoot the issue further, follow these links:
Screen mirror your Android or Windows device
Fix your remote
We hope this helps, kindly let us know how it goes.