Help please,

I have forgotten the password to the WD MYCLOUD dashboard, any suggestions please ?

Unplug the NAS, press the reset button at the back of the NAS, keep it ipressed while you plug the power back on, and keep it pressed for 40s at least.

This will leave your content intact, but will erase all your users (not the users folders, just the list of users). All shares will become public. YOu will be left with an admin user with a blank password. As the NAS reboots, choose your language and dismiss the windows asking you to set up remote access user.