I have the same Limewire Version 4.18.3, the same Linksys router and use a COX Communication broadband connection for my Dell Lap Top. I have the same problem as Coach Mike. I have McAffe as my firewall and have disabled the Windows firewall. I have followed all the instructions provided by Limewire Customer Support for enabling Limewire as a program in McAfee and specifically entering the Gnutella settings in the DNC & TNC (?) port settings. Four weeks ago I was able to remove the firewall briefly using the Customer Support directions but for some reason the brick wall reappeared when I open Limewire. The directions no longer are able to remove the firewall.

I would appreciate any help anyone can give - I've followed carefully all the customer support directions and it doesnt remove the firewall.