There are many reasons for this problem; one of the reasons is that Windows Update failed to install or update the Network drivers, in that case, you have to update the required driver manually.

WD My Cloud is a personal storage device that can safely store all of your important information, including pictures, movies, and documents, and then can be accessed over a network. However, some ...

This Windows network setting is designed to boost performance — but it could be why your videos keep buffering.