How do I setup load balancing?

I added gateway=x.x.x.x,y.y.y.y but it doesn’t seem to work. I have dual WAN connections and all traffic is going through 1 interface. In very rare occasion, it would balance the traffic in sudden and then it stopped (going through 1 interface) again.

Did you figure out this?

No.. not yet. Tried gateway=x.x.x.x,y.y.y.y form but still no luck…