Had same problem,no connection,only 1 bar and always the firewall brick icon was showing,could not download no music,i fgure the problem and its fix and my limewire works very well on my window vista desktop and laptop,the problem was that i did not had my inbound and outbound accepting the firewall,now its allowing through firewall and its wonderfull,try to check if your inbound and outbound is accepting the firewall ok,good luck.