I have opened all firewall LAN rules. Why is there a block in the firewall log
LOG
LOG
Could there have been existing connections when you made the change and the firewall didn't see the SYN of those, so it's blocking them?
How to configure to avoid similar errors
Just as the previous poster said, if you had existing connections and then changed the rules, they won't apply immediately to existing or established connections....
If you need it to apply immediately, reboot the firewall.