My brother borrowed a copy of SC:CT from a friend of his, and I realize I have this game as well.

Anyway, having 2 copies, we wanted to try some COOP action.

First attempt failed miserably: neither of us could see the others created game.

So I tried the old trick that usually works in this case, which is to run Hamchi. And indeed, in this case, we could see each others created games.

However, that's about it. After starting a game (Training mission), both of us instantly got a 'freeze' (sounds continued), and then a friendly message "You have been disconnected from the session". This happens all the time, regardless of who hosts the game.

We're both running the 1.05 version of the game.

Any suggestions?

That is about as far as most people got with Coop.

There was a sticky with a page of suggestions for getting coop to work better but who knows what happened to it.

Great.