I have no idea what a moderate NAT means either- I just know it use to say 'open', and now it says 'moderate'- and I have received the messages about my NAT settings in Halo that I mentioned above.
I think I will look around xbox.com/support and my router manual and see how to get it to say 'open' again on my xbox. The only thing I can think of that I had changed is that I disabled the UPnP- I might just turn that back on and see if my xbox changes to 'open'- I will also see if my media server messes up with my denon.
Thanks for all of the input though!
