The system is supposed to let me update the IP lock while keeping the same password, but when I click the Update IP Lock button, it says "You must generate a new password if you have forgotten it." on the password area. Wasn't it supposed to give your password instead of saying that?

It should be like that. You can't view your own password after you generated it. IP lock only changes your IP permissions, doesn't do anything with passwords.

This is the way it is meant to work. Your password doesn't need changing so why change it needlessly? It only serves to update the IP lock.

Also the password is encrypted in MD5 so we couldn't show it to you even if we wanted.