In future... it's probably a good idea to create a new thread, rather than tacking onto someone else's

Have you read the connection problem stickies? Start with this one
Connection problems? Check here first!

Double check your Norton firewall config. Make sure that the XP firewall is turned off, if you're using Win XP. Do the port test within the thread above & see of it works. Check out the info about enabling UPnP & port forwarding... chances are that your router has it's own internal firewall that might be effecting your connection. Do you see the firewall icon (brick wall)?

If you're still stuck, post back with your details

OS(Win XP etc)
LW & Java version (help > about LW & you'll see)
Firewall you're using
Modem/router brand & model
ISP
Connection type (DSL etc)
Where you connect from (home, school etc)
Are you sharing a connection with other computers
Is this your first try with LW