After LW's been open for at least 30 mins or more do this test:
Bug Report instructions & sample image Is it True/False?
What devices are you using? You configured your firewalls?
http://www.limewire.com/english/content/firewalls.shtml
Which Operating Sytem are you using?
Sometimes isp providers if even just partially block p2p use.
This is a recent example.