Alcatel Speedtouch seems to cause a lot of problems in playing JJ2 for many people. I'm not sure a real solution was ever found. Although if it was, I think it would be worth creating a seperate topic for it and stickied.

I have a general idea of where the problem actually is, but I can't be too sure. I suppose it's possible your firewall is blocking the random ports JJ2 uses to connect to games (Link would know something about this). I had a problem like this and I was forced to use GIP or JazzForce to connect to games, which worked for whatever reason. I had to use default colors, but it was better than nothing. I recall that the firewall on my modem couldn't be bypassed completely unlessed I used a bridge, but I couldn't figure it out. I wish I could be of more help.