A few questions here to better understand what you're experiencing: How are you powering the device? Is it plugged into the TV USB port, or is it plugged into the wall outlet with the provided cables? Please try to connect to a power outlet in the wall using the USB power adapter that came with the Roku.
Hello! I am just recently having this same issue despite having it plugged in the same way for a while now. It is *not* plugged into the USB on my tv, it is in a wall outlet with every provided Roku cable. I've tried searching how to PM, but I can't figure it out?? @RokuMary-F please help! It doesn't make sense as to why this message is popping up if I am not using a USB port in my tv.