My WD My Passport 1TB has suddenly started doing this, it’ll keep disconnecting randomly and will never reconnect. I have to manually disconnect the cable and reconnect for it to show up and even then it disconnects after a while. Its a USB 3.0 drive and I have it connected to a USB 3.0 port on my PC.
I have tried everything including swapping cables but after reading a Community Support Article (https://community.wdc.com/t/wd-my-passport-1tb-usb-3-0-keeps-randomly-disconnecting-and-reconnecting-itself/3452/6) in which a guy had the same problem but he connected to a USB 2.0 port and things worked fine so I tried the same and viola my HDD is working exactly like it should apart from the hit in read/write speeds.
He said he fixed it by downloading older USB 3.0 drivers but I don’t understand why this is suddenly happening now. I have had this drive for at least a couple of years and never had a problem with it. I’m using Intel eXtensible USB 3.0 drivers and I have a Gigabyte Z97M-D3H board.
This is my 3rd WD hdd that has developed random problems, this much is a fact that I am never buying WD products again.