My Net N900 Central - on Windows 8, HDD files can't be dropped or deleted

I’m running W8 and the first time I’ve configured all things on the router and the HDD appears on My Net with the nice icon of the router itself, I’ve noticed that I can’t copy nor delete anything there. I put some files from my MAC, but the only thing I could do from my W8 machine is view the files I put in there from other devices.

What message do you get when you try to copy some files? You can try powercycling the MyNet. 

Not getting any message. Just can’t copy anything there. What’s powercycling mynet?

Turn it off and on.