Occasionally, the issue is isolated to the web interface. The FortiGate may still be able to update DDNS correctly, but the GUI fails to display the server list. In such cases, using the command-line interface (CLI) provides a reliable alternative.
: Ensure the FortiGate itself can resolve external domains. execute ping www.fortinet.com Occasionally, the issue is isolated to the web interface
: An expired support contract can disable access to FortiGuard services. Verify your contract status on the main dashboard or at System > FortiGuard . Occasionally, the issue is isolated to the web interface