Sorry about my english, not so fluent yet. Recently I installed proxmox 4 and migrated windows server 2008 fisical machine to KVM VM on proxmox, and for some reason need to apply rules to incoming and outcoming traffic of this VM, so, read wiki about proxmox firewalls, eerything ok, BUT when define new rules takes arbitrary amount of time to apply them, sometines 30 seconds, sometines 10 minutes, any help or explanation ?