We have had this sound bar since new with no issues since 2018. Yesterday it would not connect to TV. We have tried new batteries in the remote. I have trawled through the Internet looking for a solution. Currently my TV is listing it as a soundbar. The sound bar will turn on using both remote and button on bar. It turns on. Goes to TV Arc will come up update and then turn off. I can't change source. The volume button will not increase or decrease. I have been told to reset I should hold down power button that does not work either. Its not showing in smart things app its greyed out. Any ideas??