Do you have any forced resume files? The reason I'm asking this is b/c these files will be constantly sending out searches for sources every few mins. Whilst it can be effective, if you have a very large quantity of them, it can fill up your upld bandwidth (particularly until they've all given up their searches) which 'can' play havoc with your connection quality. If you do reply back & I'll explain how to overcome it (it's a painful thing to go thru.)