Don't uninstall LW via add/remove programs, it can cause problems. The way to uninstall a version is to either reinstall a newer version (uninstalls the old one automatically) or go start > all programs > LW & use the uninstall option.

Have you tried any other ports in the range that I gave you earlier? If you change port numbers again, remember that port number forwarded within your router will also have to change.

Try Frostwire, see if that connects. Some people who's LW will never connect have had success with FW. Don't ask me why. If you want to try, this is the official site for download.
FrostWire.com » Official Website & Free Download «
Or try BearShare. Use the version that Aaron recommends here.
BearShare has been sabotaged.

The only other thing that I can think of is that AT&T have started blocking p2p for you right now (apparently they do that sometimes). Read Aaron's posts in these threads for more info.
Router Blocking Limewire!
no connection. help please!!
Firewall/Proxy Settngs
http://www.gnutellaforums.com/showth...379#post202379


Just for the record, these are other things that soccerblonde has tried:

Installing JRE 1.5.0_11
Reverting back to LW 4.12.6
Making sure that LW wasn't running in Task Manager before deleting prefs.