If you're facing issues signing in to HBO Max on your TV, try the following troubleshooting steps. First, ensure your internet connection is stable. Restart your TV and router to refresh the connection. Verify that your HBO Max app is updated to the latest version. Double-check that you are entering the correct activation code at hbomax/tvsignin. Clear the cache of the HBO Max app or reinstall it if needed. If the issue persists, try signing in on a different device to rule out account-related problems or contact HBO Max support for further assistance.