If you've suddenly lost connection after updating LW, try deleting LW's preferences folder first, otherwise try other fixes in this link (click on blue link): If LW 5 Will Not Connect

Don't forget to read the info about backing up incomplete downloads before deleting the preferences folder, if you have incomplete downloads that you want to resume later

If none of the fixes work then please post back with your system details: http://www.gnutellaforums.com/connec...-you-post.html