in my case, i'm using TP-LINK Archer C2.

Using this router with unifi firmware, ipv6 will not functional. this firmware doesnt have PPPOEv6 same session with PPPOE feature to enable ipv6.

international standard firmware do have PPPOEv6 same session but lack of VLAN tagging feature that required for UNIFI configuration.

what i do, i follow the step from this blog since i used VDSL setup,

http://stanleytiang.blogspot.my/2011/08/un...using-your.html

to remove VLAN port tagging at BTU level. So, i have independent port for Internet and HYPPTV. now my HYPPTV connect directly to BTU lan port, my Archer C2 connect to other BTU lan port.

Since there is no VLAN tagged to Internet port, i can use international standard Firmware. Ipv6 is working on my router, hypptv also working perfectly.