as many of you have probably experienced too, whenever I try to join a city with a friend I get error code 11688. We've tried everything to solve it, including port forwarding and giving the Wii a set IP-adress. I'm out of ideas, can anyone help me? I'm using a KPN Experiabox, the Arcadyan. It's shut tight by my provider so I don't have many options. Please help me.