When I say "not firewalled" I mean not seeing the firewall icon within LW. The LW firewall icon indicates a firewall problem...a firewall somewhere (either software or within a device) preventing LW from working at it's best.

I'm not suggesting that anybody run without a firewall. My software firewall is always on & is configured to allow LW, as is the NAT firewall within my router. Hence I see no firewall icon & am able to connect as an ultrapeer.