Hello and welcome to the community.

You may wish to consult this link first:
http://www.jazz2online.com/J2Ov2/nod...multiplayerFaq

It seems as though you need to download the latest patches and utilities, which are all available on J2O.
http://www.jazz2online.com/J2Ov2/nod...yModeDownloads


- Everett