So...I'm happy to report with my new router I am now seeing NAT Open on my xbox one!!
🙂 I couldn't find how to make my router hand out an ipv6 address right off, so i checked linksys site and stumbled across this article:
http://www.linksys.com/us/support-article?articleNum=136980I changed the mtu as suggested, and used port triggering instead of port forwarding. Added ports 88, 3074, 53, 80, 500, 3544, & 4500. I restarted my xbox and NAT is Open now
🙂 oddly I still can't complete the multiplayer testing but I dont know if that's a big deal or not. More research ahead. But wanted to share the article and the ports in case it helps someone else
🙂Thank you Corrosive for leading me down the right path
🙂