Default password of website and menu is null.
If user changed the password and then forgot, you can not access to the configuration website or the menu items which need password.
Solution:
Factory default: press Menu button and choose 16Factory Default, then a notice will appear, choose OK by using the corresponding softkey button.
If you choose factory default, you will return the phone to the original factory settings and will erase ALL current settings, including the directory and call logs.