I've had 3 mobile broadband for over a year and had no issues with my xbox connecting to the router or xbox live before. Now out of the blue my xbox will connect to the internet but refuses to connect to some of the Xbox live services, saying that both my NAT is now moderate despite UPnP being open and that my MTU is causing issues. I have tried changing these but to no avail. Even when I enabled DMZ instead this failed to work. Three is apparently doing work in my area, but I'm not sure whether this would have any effect. Has there been a router update recently that could have caused this that I am unaware of. Any advice anyone? Thanks!
