Hmm try simplifying your searches. If it's music you're searching for, just search artist or title. And also try using the All Types search.

Just to check, go to LW's menu bar, Tools>Options>Searching & make sure the no. of simultaneous searches is set to at least one or more.

Also, try this experiment: downld a magnet link from here & tell us what happens with regard to speeds & connection status: http://www.magnetmix.com/video.shtml