I went through everything back in my WC3 playing days and I can't still host on it. I think there's something up with the game. I can host every other game I play it's just WC3 no matter what I do. I would give up if I were you.
BTW many other people have followed that same procedure with no avail. It's not uncommon Edited by mr.derp - 2/19/09 at 3:38pm