We have a satellite dish and a DVD player connected to the TV, as well as WiFi.
The sound issue affects everything. All streaming channels, all satellite channels and any DVD are affected. There is no sound at all.
I always check the volume and mute on the remote if there is a sound issue.
No error messages or codes come up, just no sound.
I can fix the problem with the remote by. pressing various buttons a specific number of times and waiting for the TV to come back on, but whilst this is quite simple, it is time consuming and very frustrating having to do it every time w turn the TV on.