So my NAT type on my Xbox One is 'unavailable' it's been this way for more than a week and i've tried everything trying to fix it. I have a Belkin F9K1102 router and a static IP. I have talked to Xbox support and they recommended calling my ISP and telling them to open the ports necessary for Xbox live. They also said to ask for a public IP address but didn't make much since to me since I had the static IP already. So I call my ISP and they say that they can't do anything with the ports since my router isn't rented by them. Then they told me to go on reddit or this site for answers. So here I am world, if anybody can help me I would greatly appreciate it and will offer any other details needed. Much love.