avasiliev wrote:
what do you mean by “thumbnail issues”?
When the WD My Cloud is indexing, scanning, creating thumbnails it is occupying a great deal of the low horsepower processor used on the device as such any other actions the device tries to perform tend to be very slow.
See the following link that discusses various copy speed issues and some potential workarounds to try and speed up the copying. Above all when copying a large number of files or large sized files it is generally recommended to connect the computer, via Ethernet cable, to the same router/gateway/hub/switch that the WD My Cloud is connected too.
before you pack up your WD and return it, let’s talk about CopyingSpeeds!
Edit to add: Also see the other recent threads where Mac users are having slow copying speeds. Seems to be a recent issue possibly due to a recent Mac update.