Ok sorry to hear your hub failed like that. We can replace it. Please open an RMA by going into your store account and going into your order history and then opening an RMA. If you can't find it, you can use the Contact Us link off the main site. Let them know you talked to me and that we found that your hub is faulty. In the mean time if you'd like you can use another hub as there is nothing special about the hub that comes with your XIM APEX. It's just a standard USB 2.0 hub.