I upgraded from Limewire 3.6.15 (which worked great) to 3.8.7 (because they told me to!) and I was disconnected from my wireless network. No firewall. I changed nothing. I found an old version 3.5.8 at http://www.idg.pl/ftp/pobierz/mac/181.html, which works fine. Don't forget to dump your duff LW preferences in HD, Library, Limewire too.