Roku Express 4k+ will restart while watching programming on various apps. The program simply stops and the startup screen (jumping letters R O K U) appear followed by the homescreen. I do not lose any of my settings. This has just started within the last week and has occurred 3 times. The player is still under warranty but I would prefer to resolve the issue without resorting to warranty claim.
First thing first are you using the supplied A/C power wall adapter or are you using the USB power on toot TV. Any error codes. If you are using your TVs USB power then please try plugging it into a wall outlet