Windows 10 does not automatically connect to MyCloud NAS

[Bennor]

WD has a Support Knowledgebase Article covering the SMB1 issue and the My Clouds.

How to Enable SMB 1.0/CIFS File Sharing Support on Windows 10

Enable SMB 1.0 CIFS File Sharing Support for My Cloud, My Cloud Home, My...

One can try and edit the firmware to support SMB2 or SMB3.

Compilation of Windows 10 Methods, Steps and Solutions

Windows 10 Issues and Potential Solutions This posting pulls together, in one place, several of the methods, steps, and procedures used by others to resolve their Windows 10 / My Cloud issues or problems. Note: The compilation of methods and steps below may not solve your individual Windows 10 / My Cloud problem or issue. One cannot stress this enough, if you have not already done so read the WD My Cloud User Manual! UPDATE!!! Before trying any of the methods, steps or directions below, upd…

See Windows 10 Specific Method 6 in that link which explains (at least on a first gen v4.x My Cloud) how to edit the “smb-global.conf” file to set or change the “max protocol” setting.