Defective Unfortunately after 8 months

was very pleased with the DS414. Quiet, fast and reliable. The latter then after 8 months but not more. Under the backup beeps, status LED yellow flashing. The volume and configuration were gone. Synology Support turned on, after a week to say, do this, and do that, and play DSM 5.1 on. So all eyes leads as recommended by the support, but to no avail. The DS414 also loses under DSM 5.1 always the set IP addresses, passwords, or volume. Since Amazon bought uncomplicated complaint. A call, Return Address Labels get back device, obtain reimbursement. But I can not rate with 5 stars here.