Do you have more than one router? Because I have 2 plus my internet gateway acts as a firewall. So it was a (-) to get JJ2 working. I had to first unplug both routers and access the gateway and forward/trigger the ports to my static (Yes it should be a STATIC IP ADDRESS if not SET IT UP)! Then I had to plug in the linksys and setup port triggering/port forwarding to my static ip address. Then I had to plug in my wireless and do the same. And then it STILL DIDN'T WORK! So I updated my 2nd router's firmware and it worked perfectly. If you're not chained to another router, just update the firmware it won't do any harm, besides, since you just recently got it, you can return it if it breaks which it wont.

If all the above fails, you can hack into some innocent kid's computer and host your server from there and join it at your computer.