My Book 6 TB

Installed MyBook to PC via USB 3 hub and started copying files from another MyBook in same hub. haft way through PC says disconnected. Not found in device manager unless, show hidden, not found in disk management at all. There was a message that said, Set Address Failed. and before I rebooted it showed as exfat but couldn’t open.
Had a similar problem with a previous drive, but was able to use it as exfat.

Wd considers USB hubs as not reliable.