Mine started doing this between 7 am and 730 am consistenly 3 days ago. This is after 3 weeks with a new yamaha receiver in place replacing the Samsung sound bar. I can tell you what its NOT after reading thru the various solutions: 1 - not remote battery - used voltmeter 2 - not router: Samsung was doing naughty things in the middle of the night and flooding the router other times so it is not only OFF the network but BLOCKED and unauthorized. 2A - Cant say its not something related to the background app installs and such the TV was doing that got it booted off the network. I was seeing a lot of traffic to the samsung ntp or time servers which was followed by smurf attacks. Anyone seeing those in the logs? 3 - Not remote power on - again no network 4 - not a related devices because nothing else comes on with it. and like a lot of other customers turning off CEC, especially with this AVR, is not an option. The samsung remote is doing a good job of contolling the receiver and attached devices and I have rescanned CEC several times in setting that up. My initial problems with networking started after directv updated it's box and a directv app was auto "magically" installed by the TV. Samsung techs say the network issue will be solved in firmware fix. Seems they have a lot to fix. This is my first samsung TV so they had better get it in gear.
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