http://technet.microsoft.com/en-us/network/bb530961
I got similar results.
It might also be your router or modem.
While XP may be IPv6-ready, many ISPs are not. You need EVERYBODY from your end to the server end to be IPv6 capable in order to set up an IPv6 connection.
Correct.
The only way you can run IPv6 from your client computer out into the “big-I Internet” is for your ISP to provide you with IPv6.
Otherwise, you’d have to tunnel IPv6 inside IPv4, and you really don’t want (or need) to do that.
Regardless, it is rocket science to set up a working, routable, firewalled IPv6 LAN today. I suggest you don't even go there. If you must, PFSense is one way to do it; but you need to be a computer scientist to even read that Web site.
Eventually IPv6 will be delivered to us all by our ISPs, through routers that they will provide to us. At this time it isn't happening. The latest router from 2Wire, used by AT&T U-Verse and installed a week ago, doesn't deal in IPv6, as far as I can tell.
Your computer, your network card, your router, your cable modem, your entire cable company infrastructure, the backbone internet provider, all the way up to Yahoo needs to be IPv6 in order to work.
Converting the whole Internet to IPv6 will probably cost billions, as millions of very expensive pro-level routers and firewalls need to be switched out, along with hundreds of millions of cable modems, DSL boxes and home routers.