Having eARC engaged in the TV settings and sending Atmos etc to an eARC enabled Samsung sound bar causes the sound bar to power down after appx 18 minutes and diverts the audio to the TV's inbuilt sound system. Disengaging eARC on the TV resolves the problem and still sends Atmos via ARC. This has only occurred since the most recent software upgrade. Anyone else experiencing this?
I store my media on a PC using the DLNA built into Windows to serve the files. I've never seen this.
Unplug the TV power cord from the wall for at least 5 minutes and retry
If it'still not updated, I suspect your NAS is the problem.