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sriinuvas
Explorer II
June 3, 2026
Question

FortiGate firewall configuration reset with default

  • June 3, 2026
  • 3 replies
  • 51 views

Hi All,

Long back I was using fortigate 600C firewall. Now i want to login that device. but i have no password.

So, for resetting the configuration it require TFTP along with suitable firmware. based on boot-louder.

But while re-loading the firewall, could not see Boot-room version, Only i can see below. 

HOSTNAME login: FortiGate-600C (15:49-10.24.2012)
Ver:04000010
Serial number:FG600CXXXXXXX.

 

Please anyone can help for resting the configuration and is there any better way for the same. 

    3 replies

    ebilcari
    Staff
    Staff
    June 3, 2026

    If the installed firmware is older than 7.2.4 you could still use the maintainer account or other alternatives like reset button:

     

    Emirjon
    sjoshi
    Staff
    Staff
    June 4, 2026

    Hi ​@sriinuvas 

     

    You can refer and follow the TFTP FLASH FORMAT process

     

    Thanks, Salon
    sriinuvas
    sriinuvasAuthor
    Explorer II
    June 4, 2026

    I got below document, let us try as well. 

    Technical Tip: Resetting a lost admin password | Community