There's also the option of trying differnt ports for LW to listen thru. Go to LW's menu bar, Tools>Options>Advanced>Firewalls & change the listening port from 6346 to something like one of these (try them out one by one): 1111, 3500, 4008, 1203, 80, 20282, 10000, 443, 40475. And press apply after each change. Go to menu bar, File>disconnect & wait for 1 minute, then connect. Wait 15-20 mins for each one until you find one that works. This will work if they're blocking certain ports but not if they're blocking specific p2p programs.