you may be using a version that uses the old "master" server (or whatever it was called) for finding other Gnutella users. There was a message here awhile back warning that users of version X (and earlier) were going to be cut-off.

Since you have the Pro version, you should qualify for the latest version up through the end of your original subscription -- any idea when that was? In other words, you should have downloaded the then-current version of LW Pro on the day your subscription expired. Or, of course, you could get a new subscription and go get today's new LW 3.4.7 Pro!