Tripwire Interactive Forums

I purchased killing floor and installed the game with no problems. I have a good internet connection and some experience hosting servers for friends at other games, so I want to run a dedicated server for Killing Floor and unlike other games it seems a lot more hard. I followed that tutorial:

http://wiki.tripwireinteractive.com/index.php?title=Dedicated_Server_(KillingFloor)

After finishing it, I tried to start the server and I ALWAYS get the same error

So I used a port checker to see if I opened all the needed ports and it says everything is opened. So why? Is the master server wrong? My kllingfloor.ini:

[IpDrv.MasterServerUplink]
DoUplink=True
UplinkToGamespy=True
SendStats=False
ServerBehindNAT=True
DoLANBroadcast=True

[IpDrv.MasterServerLink]
LANPort=11707
LANServerPort=10707
MasterServerList=(Address="207.135.144.10",Port=28902)
MasterServerList=(Address="207.135.144.11",Port=28902)

I tried using serverbehindNAT False and True, same error. I can host servers at every game, thats the first time I have a problem with something so simple =[