Why do I have to sign in to my Android device every so often?
If you don't sign in to HBO GO for 14 days, you'll be prompted for your sign-in credentials (the username and password for your TV provider account).
If you're prompted to sign in every time more often than this, try the steps in the following article: Troubleshoot HBO GO on Android phones and tablets.
Note HBO GO is not supported on rooted Android devices or devices with a custom ROM. As a result, you may encounter problems that can only be resolved by restoring your device to factory settings.