If you want the
firewall to generate a unique API key, change the master key on your firewall
in order to generate a unique API key. If you have not changed the
firewall master key from the default, all firewalls with the same
username/password will return the same API key. Keep in mind, however,
if you use Panorama to manage your firewalls, Panorama and all of
the firewalls that it manages must have the same master key.