That looks good. If you don't get at least 20 results when you use an "any type" search for, say, "serial box", try file->disconnect and then "connect". That will give you a new and hopefully better set of hosts you can monitor in the Connections pane. I find it useful to turn on the option to see the vendor to get a sense of who is handling my connections.

(This is a long shot: Lw is pretty good at selecting a set of connections that gives you a pretty extensive reach to the gnutella network. If you are running as an Ultrapeer, this probably will be even less help).

Other than the usual check java version/restart/uninstall/reinstall, I'm out of ideas what else you could check until you can speak with your ISP.