The first couple of times I tried screen mirroring from my Samsung Galaxy S7 Edge to my Ultra 4660X it worked like a charm. But now, the phone connects to the Roku and the screen displays the message "Starting video from..." for a few seconds. Then the connection drops and the Roku returns to the home screen. I've scoured the Web looking for a fix. A lot of people are complaining about casting/mirroring problems and some are even offering solutions that involve rooting the phone (which I'm not about to do). I've checked this forum but haven't found anything that's identical to my situation.
To set up screen mirroring, I followed the instructions in this article. I used Smart View on the S7 and selected the Roku as the target device. As I mentioned, this was working but now can't get past the initial load screen.
Is anyone else running into this problem?
The Ultra is brand new and running the latest build of OS9.
Have you tried restarting your phone, the Roku and your wireless router simultaneously, then trying to connect again?