Recommendation #1. Don't.
Right from the very first the DSIs have been problematic when connected to hubs. Even powered ones. The DSI may work on some but not on others. My experience is to have a dedicated USB on your laptop for the DSI and run the other stuff off the hub. Generally np that way as long as i don't use and extension
BTW I have if you are autoguiding using a webcam and GPUSB I had continual problems when they were run through the same hub. Different hub to different USB port, np, same hub BSOD or lockups.
Or maybe they just dont like me and I should get a paramount ME, 12.5 RCOS and SBIG ST-400XCM
