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Did you see my firewall post at the bottom of page 1? Just wondering if you'd mind taking a look over what I have and if its appropriate...
Firstly, it is very difficult to give pointers on firewall rules if you do not have the full picture of the network, also, from a screenshot as it does not contain all information, i.e. you might be using address-list instead of in interface and that will not show on the screenshot.
With that said, here are a couple of points:
1. make sure rules 0 & 1 are "connection-state=Related, establish" and enable them.
2. Delete rules 5 & 6 as they are taken care of in above.
3. The screenshot is only showing some of the rules, i.e. 8 - 61 is missing, so from what I can see in the screenshot, something that needs to be dropped by default drop rule in forward chain (rule 66) must go through a huge stack of rules before getting dropped, wasting unnecessary CPU / Memory resources on the router.
4. I also think your firewall rules are way to complicated and can be simplified a lot better