What is the FortiGate unit password recovery process?
Interupt boot sequence, modify the boot registry and reboot. After changing the password, reset
the boot registry.
Log in through the console port using the maintainer account within several minutes of a reboot.
Hold CTRL + break during reboot and reset the admin password.
The only way to regain access is to interrupt boot sequence and restore a configuration file for
which the password has been modified.