I've got a network supporting both ipv4 and ipv6 and in both wired and wireless connection. when connecting to the network with wired connection, both ipv4 and ipv6 work well, but when using wireless, only ipv4 works well, ipv6 won't work in windows vista (Home bas. and Home pre.). i've tried wep and wpa2 encript. in windows 7 and xp, both ipv4 and ipv6 work well with wireless connection, so i think it's not the wireless ap's fault.