Technical Tip: Restoring a configuration causes HTTP/HTTPS access failure

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Description
After restoring FortiGate configuration from GUI, the FortiGate is sometimes inaccessible via HTTP or HTTPS.
However, access to the FortiGate unit is still possible using SSH or Telnet.

This article describes this feature.

Solution
The admin server certificate can not have been selected due to which HTTP/HTTPS access is not working.
To correct this behavior, use the following CLI commands to set the certificate to self-sign.

# config system global
    set admin-server-cert {self-sign | Fortinet_Factory | <certificate>}
end

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