JJ2 does work with most NAT solutions, but these Alcatel SpeedTouch modems seem to be giving people problems.

This thread might help you: http://www.jazz2online.com/jcf/showt...&threadid=8323

The problem seems to be with the modem itself, or at least its port forwarding capability. I would recommend contacting the manufacturer of the modem or your ISP and telling them what the problem is. They should know what you mean when you say "I need to forward ports for an online game".

If that doesn't help, try searching for other people who have the same problem or potential solutions (http://www.google.com is a good place to start).

I don't like to not be able further, but in these cases when it seems to be product-specific it is hard for anyone to give specific help unless they have experience with that product. You did everything you were supposed to (forwarding the ports correctly), so technically it should work.