Cannot login after changing password

[kruyvanna]

Hello,

After changing password, I can't login.
It always say 

Authentication failure

Thanks in advance

[AEK]

Hi Kruyvanna

If it doesn't work then try to reset the password.

https://community.fortinet.com/t5/FortiGate/Technical-Tip-Resetting-a-lost-admin-password/ta-p/19704...

If you have a valid backup you can also reinstall the firmware (tftp) and restore the config.

Hope it helps.