I Bought HW-Q900t soundbar in june and matched it with the swa9000 rear speakers.
It’s been working great until a few days ago.
All of a sudden the soundbar starts to turn it self off and on endlessly.
I’ve done all the resets. Factory and id set. Unplugged all cables, reconnected bt and so on.
The only thing that works is to totally unplugg the swa9000 rear speakers. Then the soundbar works as it should.
But as soon as i reconnect the rear speakers the off and on thing starts again.
Seems to be the same problem the Q850T is having. See this thread here...no sign of a fix, although mine is currently being serviced by Samsung so maybe I'm the guinea pig!