It is happening to me too!! I have Limewire for a while now and i decided to install McAfee recently and suddenly it won't connect... so i uninstall McAfee because i thought it was the problem!! But even with my old antivirus back (Avast), limewire won't connect. I checked the window firewall and everything i could...! I have a router (D-Link) but it was working before installing McAfee so is my router could be the problem??