Thank you for your inquiry and we are sorry to hear that your unit is no longer functioning as intended. In order to further assist you, we'll need to know a bit more information on your setup and your unit.
-Which connection type are you using with the unit, eSATA or USB?
-How is the unit connected to the computer? Ideally, the unit would be connected directly to a port on the motherboard.
-Did you insert a drive while the unit is on? If you are using USB connection, the proper usage would be to power off the unit, then install the additional drive.
Please get back to us as soon as possible with the answer/results so that we may further assist you with your request. Feel free to contact us if you have any questions or concerns. Thank you.