I installed IPV6 per wiki on v4.6 on x86 mikrotik.

I can ping the Mikrotik routers IPV6 address sit1 (6to4) interface and one I manually configured (The interface on our LAN side)from my windows machine.

I have tried both addresses as the default IPV6 gateway on my windows machine.

I can ping google - 2001:4860:a003::68 from the Mikrotik.

I can not ping it from the windows machine.

Where can I find help in understanding why this does not work?