This message is for who ones like me that faced issues to backup windows OS based computers with WD Smartware and My Cloud.
The issue that I’ve faced is that WD Smartware (and WD Quick View) did not see My Cloud device, only showed Dropbox option.
After some deep investigation I realised that the issue was related with Windows and AntiVirus Firewall that were blocking the My Cloud UDP packages. First disabling the both FWs and the issue was solved. After I create rules to allow UDP packages from My Cloud device.
I dont recomend you to keep with your firewall down, is not a good idea.
I hope that this post helps you.
Ed.