hello is there anything you have changed on your pc around the time its started, firewall settings ect
Any specific error messages? Can't see any hosts? Can't you join via the speicfic host option (where you type the host's name) and connect? Any e-mails from LFS to your registered address?
Quote from =C.R= blim :all server blocked???? Check if you've got the newest version of the game. (0.6E)