How do I activate my connected device? July 11, 2024 14:57 Updated Trying to log in to your TV provider on a Roku, Fire TV, Apple TV, or Android TV? Just go to cartoonnetwork.com/activate and enter the code on your screen! You will be taken to your provider to log in. Related articles What is Single Sign-On? What if I have problems logging in? Can I watch Cartoon Network shows on my mobile device or TV? Why am I being asked to log in? Where can I download the Cartoon Network app?