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sindys
sindys
New Member
July 7, 2025
Question

Has the Default Account Password Changed in FAC 6.6.4?

  • July 7, 2025
  • 1 reply
  • 503 views

Hello,

I recently upgraded the FAC to version 6.6.4 using TFTP. After booting, the admin password was supposed to be blank, but I received a message saying the password was incorrect. To resolve this issue, I accessed the device with the master account and performed a factory reset, which successfully fixed the problem. Due to time constraints, I wasn’t able to test with a lower version, but I’m curious if anyone else has experienced the same issue.

Has anyone else encountered a similar problem? If so, how did you resolve it?

1 reply

Markus_M
Staff & Editor
Markus_M
Staff & Editor
July 7, 2025

Hey sindys,

 

not sure about this; the FortiAuthenticator will require to set a password on first login, CLI+GUI. You said you upgraded so I would assume a password had been set. Which version did you upgrade from?

 

Best regards,

 

Markus

Richie_C
Staff
Richie_C
Staff
July 7, 2025

Hi @sindys 

 

According the release notes:

"Upgrading FortiAuthenticator firmware by interrupting the FortiAuthenticator boot process and installing a firmware image from a TFTP server erases the current FortiAuthenticator configuration and replaces it with factory default settings."

Special notices | FortiAuthenticator 6.6.4 | Fortinet Document Library

 

In this case i would also expect the management IP to be reset.  Were you trying to connect using the defaults?

 

Regards

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