

This in combination with direct IP connect tends to work, and is the normal practise for almost every multiplayer group and game. Tunngle or Hamachi (I recommend Hamachi), and both join a virtual LAN network.

The only foolproof way to really get HoI to work online is to employ virtual networking software, e.g. It should be clarified, however, that due to massive connectivity issues within the clausewitz engine even if you do everything right it is, still, unlikely you will be able to connect to each other. Opening ports is a stage that most people forget to make.
