Just purchased X6S AC4000. Download latest firmware and set everything up. Then, plugged in my WD Passport 4TB external drive to the 3.0 USB and the drive is not found. When I tried to set it up in ReadyShare a message popped up that said ‘No Disk.’ I connected the drive directly to a PC and everything seems fine. This drive worked great with no problems in previous AC1900 R7000.
