Changing to Learning mode did the trick! It worked!
But....i was trying to install SourceMod and Metamod and had to restart the server. I did but after starting it again, it wont start.
I looked into the server log and says Socket bind failed (WSAEACCES)
This is my internal ip: 192.168.1.2
What may be the problem ?
[edit]
Its working now! The problem: automatic mode.
The server worked again after i switched again to learning mode. It was blocking the connection. Dont know which port should i allow it but as long the server works in this mode, its fine for me.
Thanks to everyone!