I have had similar issues with the same sound bar QN90B 55 inch tv. Returned the first one and second one worked fine for a few hours, then lost sound. Inexplicably got it back the next day only to lose it again. Tried all the things including chat with samsung support. Advice from Samsung was to turn it off and on which doesn't seem to be working and with frequency of the issue doesn't seem to be a fix. I'll return this one shortly unless samsung can give a more concrete fix.
Any update? I have exactly the same problem with my HW-Q60B, I have tried every single fixup, I have updated the FW and factory reset it. Nothing seems to work
I have the exact same problem. I have the soundbar connected to a Samsung QN65Q7 TV. The soundbar worked for 1 day, then no sound. I spent time on the phone with samsung support but they couldn't resolve the issue. Now I'm waiting for someone to come and pick up the unit and ship it to Samsung for trouble shooting and repairs. What a pain.
I had the exact same issue. Had Samsung on the line and they thought it was my tv until they asked me to connect my phone to the soundbar with BT. It connected but didn’t play any sound and that is when they informed me it either had to be repaired or returned to the company I bought it at. Decided not to take my chances and returned it.
I did a check online for reviews and found that the majority experiencing the EXACT same issue were out of the US. I think it is probably just a faulty line from Samsung and it’s ridiculous they aren’t doing a recall. If anything they should upgrade customers who have forked out 250+ eur (depending where you bought it/discount) for a faulty device. Absolutely ridiculous. I’ve left a bad review on the local Samsung site but they haven’t bothered contacting me. Feel sorry for others experiencing this, I hope they can see this before buying!!!