This is a good guide. However, I spent two days attempting to connect to WD My Cloud NAS drives from a new Surface Pro (Windows 10 Pro). It took that long even though two other Windows 10 computers on the same LAN were working fine.
Here is hint for Windows 10 users. DO NOT SIGNON TO WINDOWS USING A PIN.
This feature in Windows 10 is handy, but there are bugs in the implementation. When you sign on using a PIN rather than a password, the network sub-system has trouble with the credentials. Evidence of this is the “net config workstation” command at the command prompt. You will get: “System error 1312 has occurred.”
When you attempt to “Map network drive…” you will get the following error:
Both errors go away if your log on using a password rather than a PIN.
My case may be unusual because I use Office 365 credentials to logon to my personal computers. I still think chances are good that if you have tied all the “fixes” above and do logon to your Windows 10 machine with a PIN, logging on using a password may solve the problem. It worked for me.