[MovedGoalPosts]

That arrangement can't work. The rules will be processed in order so it will see WAN 2 policy first and shovel everything down that. It'll never get to the WAN1 rule. For loadbalancing policy you need to allocate different traffic types, or different computer IP's / ports on your net. So for example you might put your priority webserver traffic down one connection and leave the networks internet browsing, email and stuff running on the second connection.

I havent got access to my office router at the moment so can't see it's config options. You should have settings that allow you to tell the router whether it uses it's own algorithms to split traffic down each connection, or prioritise one with failover to another. The prioritisation can be as the router sees fit, or based on the line speed settings you create. One thing with such balancing where the connections are chosen at a whim is you need services that login such as port 443 SSL to use one connection only else users will for ever be getting kicked off, which is where the above load balance comes in