Try the advice here: all of a sudden will not connect (a fix to try)


You'll know if you've deleted the preferences folder properly...when you start LW, you'll go through the setup wizard again & all the settings within LW's options will have changed.
If you didn't have to go through the setup wizard, try deleting the preferences folder again. See this post, points 1 - 6 for basic instructions.
One bar, connection problems

If nothing there helps, please give us your details.
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Please don't get angry at us, we don't work for LW