That means you're not connected to the Gnutella network. Can you post these details for 'each' of your locations of using LW: System details - help us to help you (click on blue link)

1.Windows Vista Premium
2.I use Windows Defender
3.958MB
4.80GB
5.Cable
6.Linksys WRTG wireless router
7.home
8.limewire 4.18.6;java 1.6.0-oem
9.Charter
10.your test worked
11.yes through a wireless router;other computers also have limewire that used to work and now does not.
12.been using lw for a few years
13.no brick wall
14. not sure what that means
15.micro trend;windows firewall
16.USA
17.lw stopped working on all our computers and we upgraded, I think to 4.18.3 version? and it worked for a few weeks, then it stopped working again and we upgraded to 4.18.6 and it has not worked since on any of the computers.

overall we have not changed anything other than upgrading limewire, perhaps when the upgrade happened there is something we are not doing?? not sure...just need help thanks..