Hi, I am eagerly awaiting a reply to your question also as the very same thing has happened to me. Yesterday everything fine today no connection and a firewall present. Im hoping it to be a temporary glitch with limewire. I did have am automatic windows download last night but Im pretty sure it did not install. Thought this may be part of the problem. checked all firewalls but no change from what it was before? Would also appreciate some help. thanks.