Stateful IPV6 does not work. When the router is configured for Stateful IPV6 and a reboot is run, the post reboot IPV6 tab shows a LAN IPV6 Address and a LAN IPV6 Prefix. If you run an ipconfig/all to check the connected pc IP address, you will see that the device does not have an IPV6 address. This was the same situation for Firmware Version 3.0.0.4.384.20308. When Stateless IPV6 is selected, the IPV6 tab shows the same LAN IPV6 Address and LAN IPV6 Prefix and the connected pc has an IPV6 address.