Packets being dropped even though in log they are shown as passed

[AaronZelechow]

Hi, I am experiencing a strange issue. Periodically my firewall is dropping packets. In the logs it shows the packets as going through but the traffic never actually reaches the destination. If I move the traffic to the failover member in the cluster the issue goes away, but then will reappear usually after a couple of hours. I am running R80.40 on 5600 appliances. What would the best way to troubleshoot the issue? What logs should I be looking at?

Thanks

Aaron

[_Val_]

Run fw monitor to see if they are really disappear in the FW or somewhere else.