So I bought Stalker: SoC, and it's pretty damn awesome. However, the network game refuses to cooperate.

So I click on the Network Game-option, the server list comes up normally, all servers showing up and all that, but when I click on join it goes to the loading screen and freezes at the 'Connecting to '-screen.

It crashed once, but most of the time it just freezes.

Any ideas why and how I could fix it?