Fresh Dedicated Server, but Not Responding

[tharxneo8x]

So I just setup this dedicated server today.
The IP is 24.211.167.201. I have used the console to start a game and such, the server has shown up in my servers list, but when i view the game info, it says that it is not responding. I've had 4 other people join the game, and play successfully, but I and a couple of my friends who tried to join it couldn't because it wasn't responding.
Any suggestions/possible explanations would be so fantastic.
Thanks, in advance.

[Ghost Assassin]

Did you open all necessary ports to your server? Since you are new to setting up a dedicated server...I'd recommend reading this guide.

http://planethalflife.gamespy.com/View.php?view=HL2Guides.Detail&id=4&game=3

[tharxneo8x]

yeah!
that totally made it show up as a legit, join-able server.
rockin.
thanks a lot, dude.