Invalid Traffic

According to that log entry, it is being dropped due to firewall id 1. Could you show us your firewall rule id 1?

Thanks,
Karlos

The majority of the messages on the dropped traffic are "Could not associate packet to any connection" the other was the first I've seen with that message

So that rule is an inbound rule, meaning you are allowing all traffic IN to your network. Is this your intention?

Remember that the firewall is stateful and does not require an inbound rule. All traffic allowed out (e.g. LAN -> WAN) will automatically allow return traffic in. 

As per the message "Could not associate packet to any connection," please refer to the following thread with similar issue: Numerous 'Could not associate packet to any connection.' messages in the firewall log

Cheers,

Karlos

It's actually an outbound rule. I have messing around with it and that screenshot was taken when its not in its normal state

Please post a shot of the real firewall rule that is causing the issue.

Ian