B). The management computer does not have connectivity to the authorization IP address and port combination. If the FortiGate cannot reach the FortiAnalyzer on the configured IP address and port (typically HTTPS), the authorization request will fail. This could be due to firewall rules, routing issues, or incorrect configuration.
D). The fabric authorization settings on FortiAnalyzer are misconfigured. FortiAnalyzer needs to be properly configured to accept authorization requests. This includes settings like enabling Security Fabric and configuring the correct authorization method.