duped1, It’s unfortunate to hear about your experience with Samsung’s DU6900 TV. Please know the DU6900 does support screen casting across compatible devices. Please give us the opportunity to collect more information to assist in troubleshooting this issue. You can call us at 1-800-SAMSUNG, 8 AM - 12 AM EST, seven days a week. Our LiveChat agents are also available by clicking on the ‘Support’ link on our website. ~ Samsung Pro

Honey badger, Thank you for taking the time to provide feedback on your DU6900 TV. Please know that your feedback will be shared with our internal product teams. We take pride in our products and are sorry to hear that your experience was not up to our high standards. If there’s anything we can ever help with, please call us at 1-800-SAMSUNG, 8 AM - 12 AM EST, seven days a week. Or visit us on the Samsung website and click on the ‘Support’ link for: 1) LiveChat 2) Manuals, Software, & Warranty Info ~ Samsung Pro

Mom3, I’m sorry to hear about the issues you’ve experienced with Samsung’s DU6900 TV. Your feedback is important to us and will be shared with our product teams. Let's ensure you are running the latest Firmware. Go to Settings> Support> Software Update. I recommend enabling auto-updates to ensure you do not miss any Firmware Updates. Go to Settings> Support> Software Update> then select Auto Update. If you need more help, Samsung is here for you! Please call us at 1-800-SAMSUNG, 8 AM - 12 AM EST, seven days a week. Our LiveChat agents are also available by clicking on the ‘Support’ link on our website. ~ Samsung Pro