Hello Star108, welcome to the Samsung Community! I understand your concerns with your device not being able to connect to your Samsung TV for streaming. First be sure that your device and TV are connected to the same Wi-Fi network. Allow permissions on your TV: open your quick panel settings, tap smart view, select your TV, and select Allow. Verify that your TV and mobile device software is up to date. Reboot your TV and mobile device. Perform a factory data reset on your device, please be sure to back up your device before performing the reset: Perform a factory reset on your Galaxy phone or tablet
