Before you RMA your Device ... let's talk about your problems!

Because your using Windows 10 you may want to take a read through the following discussion which details how to adjust certain Windows 10 settings that may be preventing access to the My Cloud on the local network. These include enabling NetBIOS over TCP/IP, ensuring the network is configured for Private.

https://community.wd.com/t/compilation-of-windows-10-methods-steps-and-solutions/142576