You may want to review the following thread that has a variety of solutions for Windows 10/My Cloud issues that may or may not help in your instance. Generally one needs to ensure they have Windows 10 network settings configured to Private and not Public and that they have NetBIOS over TCP/IP enabled in their Windows 10 network settings.
https://community.wd.com/t/compilation-of-windows-10-methods-steps-and-solutions/142576
