Three smilies in a row as max, please ;] They're fun to use, but sometimes a picture is definitely not worth a thousand words.
It could be that the server crashed when you have tried afterwards - or it could be something from your ISP blocking the connection. Go over the router steps one more time if you haven't, just to make sure everything has been entered correctly. I'm also not sure how to ping an IP on the Mac, but if you can try pinging "laanx.fragnetics.com" to see what's up, it might help.