A:Answer Hi Muks,
Please ensure you are running the latest Firmware Update. Go to Settings> Support> Software Update. Next, let's try running a cold boot on your TV. To do so, hold down the Power button on the Samsung TV remote until the TV turns off and then on again. This should take about 5 seconds.
If you continue to have issues, please call us at 1-800-SAMSUNG, 8 AM - 12 AM EST, seven days a week. LiveChat with an agent, as well as manuals, software, and warranty info, can be found at the ‘Support’ link on our Samsung website.
~ Samsung Advisor