My cloud seems not working

Hello everyone!
I bought a my cloud device almost a moto ago and I’m struggling a lot in trying to make it work. Despite it being connected to the wifi, every time I try to connect myself on the internet page it says that it is offline. How can I get into my account? (to avoid every useless answer: yes I did try to unplug every wire and plug it back on and it didn’t work)
Also is there a way to format my device and start the configuration back from the beginning?
thanks a lot!

Sorry, don’t know which My Cloud device you own, maybe this will help so you can tell us which device you own.

Go to the next link, select you WD model and follow the instruction for the Hard Reset.