I've owned a 65" f7100 for about 6 months now. It is hanging in my media room and has little mileage on it. I am having an issue streaming with the Apps (Amazon VOD and Netflix are the only ones I use). After about 30 minutes of streaming, the both apps lag badly. It takes about 30 sec to 1 minute for the app to respond to the remote (video still playing fine). After about an hour, the video/audio starts freezing and gets progressively worse. At this point, the TV/app is unresponsive. I can see the red LED flash in response to the remote, but the app does not respond. I cannot even turn the TV off. If I select the smart hub button on the remote, the screen goes black and after 1 minute, and it may go back to the menu (if I'm lucky). As soon as I can cycle the TV off, back on, and reopen the App, the problem is fixed. I have to go through this nonsense every hour or so when I stream a movie. It is not a buffering issue.
To answer a few basic questions:
This issue just started a couple of weeks ago. I could stream perfectly fine without issue since I bought the TV.
I updated to the latest firmware (didn't help).
I updated Netflix and Amazon VOD to the latest software (didn't help).
I can stream from computers, phones, and game systems just fine throughout the house.
I am running an Ethernet cord directly to the TV.
Playing movies through an external player works perfectly fine (TV is responsive to remote throughout viewing).
Before spending 5 hours on the phone with Samsung and getting the run-around, I'm hoping someone on this board has some advice. I would greatly appreciate it.