FGT Firewall 40F- upgrade issue with 7.4.7

Did you try connect with a console cable?

Hi anettaj77,

Please connect to FortiGate via SSH through PuTTY as demonstrated below, ensuring that SSH is enabled on the port.

If SSH access is unsuccessful, then use the following article to access the FortiGate via console cable and move on to next steps:

https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-connect-to-the-FortiGate-and-FortiAP/ta-p/214839

After taking the access, run the httpsd debug logs and check what output you are getting:

diagnose debug application httpsd -1
diagnose debug enable

Try to run the below commands and see if you were able to access or not.

config sys global
set admin-server-cert Fortinet_Factory
end

Please follow the below steps and see after that you were able to take the GUI access or not.

https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-Cannot-access-the-FortiGate-web-admin/ta-p/190239#:~:text=When%20using%20port%20443%20to,conflict%20with%20the%20GUI%20connection.&text=edit%20%22fortilink%22%20%3C%2D%2D,is%20trying%20to%20log%20in.

If you have found a solution, please like and accept it to make it easily accessible to others.

Regards,
Aman

Hi @anettaj77 ,

Please provide more details:

1) What is your user account in this issue?  Local or remote?

2) Do you still have access to the FGT via console?

3) What interface IP did you try to access for the GUI?  Please share this interface settings.

4) What is your client IP to access this FGT?  And please share the settings of the user account you were using while having this issue.