<Global Settings>
Management → Settings
Http Configuration → Change Password (available from firmware V650Bxx, a change requires the http_user and http_pass credentials)
<http_user>VALIDVALUE</http_user>
It defines the HTTP username for your base station, together with http_pass it will protect the web interface.
Starting from firmware V610Bxx, a login with these credentials guarantees the ability to access every page of the WUI and to configure the access rights for the other users (http_basic_user, http_admin_user, http_engineer_user).
e.g. admin
admin