Verify that you included the correct port number at the end of the URL. Check if your server firewall is blocking that specific port. You can log into your server via SSH and check if the Xtream services are actively running using the command: etc/init.d/xtreamui status or checking your specific systemd services. "Invalid Username or Password" The system does not recognize the credentials you entered.

Understand how to like "Invalid Credentials" or "Network Error"