Airport Express issues!

[timvrakas]

Hello! this is my first time with ipv6 and i have some isues.
I have an at&t 3801HGV router/modem. and an apple airport express. the airport express is in dmz mode and has my public ip address. I set up the ipv6 settings on the express but it does not work. i get a non-functional ipv6 on my computer and then it switches back to ipv4, the LED flashes yellow, and there is an error.

https://drive.google.com/folderview?id=0B4ncak83gVoOeGVVY1haeHR1bUE&usp=sharing

hope you can help!