Connection issue

[XSlomanx]

Hello Guys
I've bought Killing floor from steam 2 days ago with 1 of my best friend. But i got a huge problem right now... I cant Connect any Multiplayer server, Stucking at "Connecting (press f10 to cancel)" and nothing happens...

I can only join to "any" Multiplayer server by Join to my friend from Steam, but cant connect by myself

I've searched for this issue on the forums.. and tried some couple of things writen on the forums (like changing ports, Change download region on steam ect.) still didnt fix it..

Anyone know how to fix it?

P.S: i delete the game and install it again but nothing happined at all...

Thanks for your support and sorry about my poor english >.<