Might want to check with Samsung, since the Sonos was working before, and the only thing in the equation that has changed is the TV itself.
Hi @Fejutate
Welcome to the Sonos Community!
I would definitely recommend a reboot of the TV - unplug from power for 30 seconds. Please also make sure it’s software is up-to-date.
Samsung TV’s are not always rebooted after only 30 seconds without power. I’d wait a couple minutes at least. If you are impatient, press the power button repeatedly until the TV stops responding.
