How do I activate my connected device? February 11, 2019 17:34 Updated Trying to log in to your TV provider on a Roku, Fire TV, Apple TV, Xbox One 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 if I have problems logging in? Can I watch the Cartoon Network app on my mobile device or TV? Why am I getting errors while trying to log in? What if I have problems logging in? What is Single Sign-On?