May be a Firewall Issue.
Is there a Brickwall in front of the Blue Globe.
You don't really "Seed" per say in LW, but Sharing will make a big difference.
Members that don't Share may find that their downloads will get Killed by Peers that perceive you as a Leecher.
Post your
system details Here, and we can take a look to see if there is an issue that we can help you with.