A. The FWM process crashed on Security Management, therefore logging will not work.
B. There is not enough storage in Security Management, so the logs can't be stored.
C. The logging blade was not enabled on Security Gateway.
D. The gateway is logging locally.
Explanation:
If logs are not appearing in the Security Management despite successful traffic flow, the most likely reason is that the logging blade is not enabled on the Security Gateway. Without enabling the logging functionality, the gateway will not send logs to the Security Management Server, even though the traffic itself is passing through successfully.