I bought the Roku Soundbar in Oct 2019. It was working fine but it will not even power on now. There are no lights on the front. I have unplugged and plugged it back into my Sharp Roku TV. I swapped the outlets that the TV and Soundbar was plugged into. The TV continues to work but not the soundbar. I click on the Soundbar app on the Roku TV and on the screen it says "No signal. (Is it on?)". I have tried changing the batteries in the Soundbar remote. All these things and I have the same result.