Why can't newly created admin users log in?

Zyxel_Emily

Question:
The default admin account works fine on the firewall, but newly created admin accounts were unable to log in and returned "incorrect credentials" errors. Attempting password resets and recreating users didn’t solve the issue.

Answer:
The problem occurred because the authentication method for non-default admin accounts was not properly configured. Additional admin users could not log in because their authentication method was not included.

1. Go to Configuration and select Authentication Method settings.
2. Ensure "local/ZyWALL" s added to the default method.