Have recently joined Xnet and been very happy so far, but now I'm trying to get multiplayer for supreme commander working and not having much luck. It needs a few ports to be forward, most importantly 6112 udp. I've got this forwarded on my modem\router and zonealarm all set to let it through too. But when I check it using this:

http://forums.relicnews.com/showthread.php?t=63593

It says "NAT detected" on that port.

So just wondering if Xnet may have this port blocked or somesuch. This setup used to work fine with supcom and my old ISP.