Just tossing this out there, last night was fine but the day before that I had 3 disconnects and ping times from 400-3000ms. This happened two days in a row. Last night seemed to be ok. I disabled the background downloads as x5 downloading (remember these are torrents and they use your upload as well) could cause some lag. That didn't help my issue, just time did. I think they were having problems on their end doing some server work. Perhaps after a day or too it will be restored to normal like mine. Hopfully it's that simple!

Another thing comes to mind is running a spyware check, some of that stuff can really kill the bandwith.