Multiplayer not working

[Ameba Da King]

The games are: Tekken Dark Rerruction, Asterix & Obelix XXL 2: Mission Wifix, Crash Tag Team Racing. We're both using Hamachi to connect to the server and disabled the firewall.
The connection problem isn't with the ISP but inside the games that say "connection to the other player lost" so we don't see any orange/red message