Do I need to be connected to the Internet to use this app? February 15, 2019 18:51 Updated Yes. You need a high-speed Internet connection. Related articles Why am I getting errors while trying to log in? The video playback is stopping or stalling. What's wrong? Where are all the classic cartoons like Scooby-Doo, Looney Tunes, and Tom and Jerry? What if I have problems logging in? I used to be able to log into this site with my Comcast Xfinity credentials, but now I am getting an error. How can I fix this?