IPTV devices do not play the stream automatically. Firstly, please make sure you have uploaded the playlist correctly. Then, verify the proper function of the app installed on your TV. For instance, if you use the SIPTV, you have to add the streaming line and MAC address of the TV in order to activate the app. Please follow the instructions of Smart TV.
Sometimes users encounter issues where the SIPTV app no longer display the channels or stays on buffering. In this case, we highly recommend that you reset your playlist on SIPTV website and upload your playlist again based on the instructions demonstrated above.