TL-ER6120 not routing as expected
Hi, I'd like to know if it's possible to make the TL-ER6120 router to behave as I expected. All I need is the incoming UDP traffic gets replied from the same WAN interface it came from. Right now outgoing traffic sticks to one WAN interface no matter where the packet came from. For example, traffic reach the internal server through WAN1, and the remote app gets replied from WAN1, but the same traffic gets through WAN2, and the reply gets out from WAN1.
I've been trying many things and I've come across the setting " Enable Application Optimized Routing " but when I uncheck it, all the traffic gets replied using WAN2, even the UDP packets reaching the server through WAN1.
I don't know what else to do, I'm beginning to think that it's not even possible. Could anyone help?