A few things:
1) netsh interface teredo set state disabled
2) netsh interface ipv6 add v6v4tunnel IP6Tunnel 192.168.1.30 216.66.80.26
3) netsh interface ipv6 add address IP6Tunnel 2001:470:1f08:2d2::2
4) netsh interface ipv6 add route ::/0 IP6Tunnel 2001:470:1f08:2d2::1
This is correct for you because you're behind NAT. To double check, remove your IP6Tunnel adapter, reboot, and recreate using those commands.
If it still doesn't work, your firewall/router is probably blocking protocol41
To clean up ipconfig, run this
netsh int ipv6 isatap set state disabled