Ah, it seemed to be a problem with Internet Explorer. It was trying to use a dial up connection and so I was required to change it to wireless.

Thank you very much.
If I encounter any other problems, I'll repost on this thread.
oCortex c:

Hey c: I recently downloaded the ManiaPlanet program in order to play ShootMania. However, I've been encountering a connection error; "Cannot connect to the server (12029)" I have looked up some solutions and have tried the following but I am still encountering the same problem: >Turned of...