I had been using mirroring with my Roku box for about a week. Two days ago it stopped connecting. The 'blocked' message appears when I try to connect, after selecting Connect - "Roku Express". The laptop thinks it is connected, displaying 'Connected to Roku Express' in a top of the laptop screen ribbon. The monitor displays a horizontal purple status bar that shows about 98% complete across the screen, not quite completing anymore. Text on the monitor says "Starting video from ... Desktop-xxxxxxx" where the x's are my desktop ID. There is a "Stop Video" icon on the monitor. Pressing Roku remote control keys does nothing or terminates the connection. Pretty odd that it worked so well then just quit.
Casting from YouTube still works great. Only the mirroring is blocked. I have power cycled and even done a factory reset on the Roku box. Nada.
So I got another laptop and could mirror with it. At least for now. This makes it really challenging to see what changed. And I have to admit, the ROKU box likely isn't the cause. Doh! Hardware is easy. Windows - way too many traps. After a full day of trying different things, my first laptop still won't mirror with no apparent setting changes. Guidance would be appreciated.
