hi Annieg43
Check options here:
http://www.gnutellaforums.com/connec...t-connect.html. In particular, I'd recommend trying the OSX connection fix installer (LimeWireOSX-FiX.) However, worth trying the other options also. For LW 4 for me, disabling TLS seemed to fix a connection issue. But each option will depend on particular user's specific set up.