I need help with my NAT type on my PS3?

I have the ports (TCP 80, 443, 5223, 10070-10080)(UDP 3478, 3479, 3658, 10070) triggered. And i have my playstation in the DMZ, still im at NAT 3. I have a new Netgear 3400 N600. If you have any ideas I would appreciate it.