In such cases, you should also try http://www.gameranger.com/download/GameRangerSetup.exe. It's a great alternative to Hamachi. You just need to register. You will definitely receive registration emails at www.gmail.com.
By the way, there are many players there who play in WCL leagues, and you can see all the games that are currently being played. Our players also play there, such as: Captain, bRitvo4kA, redwhait, etc.
In general, give it a try, because Hamachi sometimes has a lot of issues.
(I haven't used it myself).
PS: It would be great if each player, in addition to the universally loved Hamachi, could also use GameRanger, so that they could play/finish a game even if the first one fails, without lengthy explanations.
One drawback is that only the player with a direct IP address can create a game (I have an indirect IP address, and I have never been able to create a game).
Therefore, PReDS, you should be the host there.
However, I think the reason for the incompatibility with Volland is not Hamachi... he has problems with his computer or with the quality of his connection (provider).
