I am using TP-Link Archer C-9. MY ISP provides IPv6 address and while I was on my vpn during streaming I checked my IP and found out that my Public IP was visible 
what I understand that the vpn I am using is not capable of handling IPv6 ? Can you guys please let me know how can I stop IPv6 leaks? Any help is much appreciated!
Simple solution. Use a VPN that works over ipv6.