I've just bought a lg sound bar and experiencing problems, I tried connecting through high speed hdmi with Ethernet cable which sees the sound bar work but it is fiddly each time you switch to on to get it to work. Sound is great through sound bar after a minute or so of fiddling through settings and stumbling upon it suddenly working, it is also difficult to fire it up when watching fire stick through hdmi2 though it does work once stumbled upon. I've had a suggestion of using coax converter to optical cable connection but haven't purchased this yet to try it, was hoping someone on this site may have a different solution for me