Just downloaded basic LW, (had about 6 months ago, but uninstalled, worked fine then!)

I seem to be stuck behind a firewall, got the ball behind the wall sign, and it won't connect.

How do I rectify this problem please.

Nothing has changed on my system since I last had LW installed, so I don't understand why I can't connect now. Only got one tiny little green bar.

System is Windows XP.

Running through orange livebox, with two additional wireless PC's running from the livebox.

Can anyone help please.