Check this out if you can't connect..Worked for me
 

If you are only getting one bar and have a brick wall in front of the globe try this out...go into your firewall and wherever your advanced settings are. I have Norton 360 and mine were under PC Security>Manage Firewall>Traffic Rules Tab> Make sure that both the "Default Block UpNp Discovery and the other UpNpone are both ALLOWED. This is what helped me. Reload limewire and it worked for me. Let me know..Give it a try