server showing in list but no body can connect pics

[Drocona]

Triple check the ports, make sure the IP is set correctly and stuff, here's a list:
UDP 1200 (Friends Network)
UDP 27000 to 27015 (Gameport)
UDP 27020
TCP 27030 to 27039
TCP 27015 (SRCDS Rcon port)

If everything still fails, try to disable firewalls and/or virus utilities.
still fails? Make a direct connection to the internet (no router) and see what happens then. If it works, the router is your problem.