Hi, I've seen older posts on this but am struggling for a resolution.
I have two son's both with XBOX One's, and try as I might I can only get one of them to connect as OPEN NAT at anyone point in time, but not both at the same time. Both XBOX's have connected OPEN so it's not one XBOX or the other.
This leads me to think it's the router at fault. I currently have DHCP wound down to the first 98 IP addresses, the DMZ turned off, and both XBOX's using fixed static IP addresses above the DHCP range.
It's not wireless as I get the same result whether wireless or wired.
This is a major problem for gaming as it prevents them both being in the same game at the same time.... any help gratefully appreciated.