Dear @lahiru,

Q1. Is possible to map wan1 or wan2 to user group

 

Are you asking about the One-to-One NAT (Network Address Translation) which creates a one-to-one mapping between a valid public IP address and a private IP address of a local host? If yes, I'm afraid the TL-R480T+ V7 doesn't support this feature, but TL-R480T+ V9 does.

Q2 . Is there any way to manage YouTube and Facebook traffic route to wan1 or wan2

 

Policy Routing can help select the appropriate WAN port for data transmission, but it is based on protocol, source/destination IP and source/destination port.

For YouTube and Facebook, the destination IP is variational. I don't think it can be routed to specific WAN by Policy Routing on the router.

Best Regards!