We've a new site with a few Checkpoint Firewalls and physical / virtual servers. We've been experiencing connectivity issues over the last few weeks. When we enable Stateful inspection we get out of state packet alerts on the firewalls. I wondered if anyone has experienced similar issues before or has any idea how to troubleshoot this? It affects remote users as well as something as simple as internal AV updates between the servers. The physical and virtual servers are both affected. Why would out of sequence packets occur? Sophos AV 10 is used but the web filter is turned off.