I have a Roku3, purchased just a few weeks before the Roku 4 was released, which has been freezing frequently in recent weeks. Today we turned the TV on and the screensaver is running, but the Roku would not register the remote input. We tried re-pairing the devices several times and rebooted the Roku a few times for good measure. Then we opened the Roku app on my Android phone, still with no results. The app recognizes the device as being on our network and is behaving normally, but the Roku is not responding - no indicator light nor any change away from the screensaver. The device is barely a year old, and I can't fathom this being normal. Our previous Roku, one of the 2 line, is still working in our spare room! With no means of communicating with the device, what options do I have to fix this?