Have you read through the WD My Cloud User Manual?
While I won’t speak for others, the My Cloud generally works for me (and a family member). No problems using Windows File Explorer to access the My Cloud on my local network. No problems access it remotely (both mine and a family members at their house) via the WD My Cloud Dashboard, and via the WD My Cloud app for Android/WD Photos app for Android. Only problems I have is with Windows 10 and (since fixed) with one USB external hard drive not being recognized by the device when connected to the My Cloud via its USB port. The Windows 10 issue is a problem with Windows 10’s November update and there are workarounds detailed in this thread.
