Go to your LW menu bar, Tools>Options>Speed & tick the option to Disable Ultrapeer Capabilities & press apply. See if that makes any difference. If not, it might be related to the modem/router you're using & whether it uses UPnP (Universal Plug & Play) which allows LW to communicate directly with the modem/router to open up a port. If it doesn't use UPnP then you may be recommended to manually forward (open) a port. I'd need to know your brand & model number of your connection devices to help you there.