Hello

I have a Samsung Q90T and a Sonos sound system (Arc, 2x Era100 and Sub Gen 3). 
 

Sometimes the Sonos sound system won’t play any sound coming from the TV. Even though the Sonos app says the TV is connected, the TV says it is connected, and the led on the Arc blinks when I’m trying to increase volume on the Samsung remote. 
 

Previously when I’ve had this problem, I could fix it by turning everything off, and unplugging the arc, my Apple TV and Xbox series x, then turning tv and arc back on, and setting up the tv in the Sonos app again, and plugging in the arc when the app says so. Then it would work again, and I could plug in my Apple TV and Xbox series x afterwards. 
 

When it happened today, my previous fix did nothing. I tried resetting both my tv and arc to factory settings, but still didn’t work. 
 

The problem occurs when the tv is trying to play any content - when it is only the menu, I can hear the menu sounds through my arc. CEC is enabled, Pass-through is enabled and earc is enabled. But when I try to play any content the pass-through greys out, and the sound from the menu disappears too. 

It’s really frustrating - having tried every fix possible, and can’t wrap my head around what seems to be the problem. 
 

I can tell a lot of people seems to have had similar problems with Samsung tv’s and the arc. But shouldn’t this be fixed after many years now, of having these compatibility problems? 
 

And does anyone else have a solution for me? 
 

Kind regards,

Oliver