Connection probs on XBL-NAT type?

Hi guys,

I get a message sometimes but not all the time when I go to online mode that says my NAT type my interfere with gameplay or something like that (forget the message right now, I can quote it later), and I can play 1v1 fine against people, but I cannot join rooms with more than 1 other person, and I cannot even search for rooms with more than 2 people, or join when invited.

Is there a router setting or something I can adjust for this? I am on wired of course.

 

Make sure you have all the ports that X360 operate on open your router (53,80,88,1863,3074).

Look up your router on the portforward.com page to learn how to set it up.

http://portforward.com/english/applications/port_forwarding/Xbox_Live_360/default.htm

 

You may simply be able to solve these issues by turning Upnp (universal plug and play) on in your router settings. Try that first the if that fails tire on port forwarding.if it still doesn't work then see if your router is compatible with Dd-wrt firmware and flash it then turn on upnp. My linksys would drop ps3 connections before I flashed it.