I'm really not sure how to check for bad hosts. I did notice that I started getting results on my search when I went to the Connections tab and clicked on a host.

1. That host # came up with a search tab and started showing songs.
2. When a host # had problems then it came up with a search tab but no results (I think I also got a pop-up message) and this is when I didn't get any results with my searches.