It is only doing it due to packet loss on the Internet connection. Running a PingPlot as soon as possible after a dump might help reveal where the packet loss is occuring.Are you on a wireless connection? If so, that is probably the culprit.The lockup you are describing sounds like Windows not being able to satisfy a network request and putting the game on pause. It can take a minute or two before Windows will finally give up and return control back to the game.