Networking issue

Hi all,

First off, I'm a new Torque user, I'm a student at a Dutch university, studying Game Architecture and Design, we're using Torque to create a small game. We started out with the FPS starter kit and right now we've run into a weird thing, I was hoping to find some help here from the community :)

Basically it boils down to: I can connect to a server over LAN but I get disconnected before the mission starts, the server has the exact same version of the game as myself so that shouldn't be the problem, the error looks something like this:
You do not have the correct version or the related art needed to play on this server. (Invalid packet(mounted images))

I'm quite sure that the problem is in the Invalid packet but I'm not sure what it is or how to fix it, could anyone enlighten me on Invalid packets? :) I know there are quite a lot of topics on the forum where people have similar issues but none of the proposed fixes have been able to help me, I'd just like to know possible causes of Invalid packets so I can investigate the issues further, right now I'm quite puzzled :(

Thanks in advance!