NAS326 - Not going to sleep

Hi, thanks for answering. Yeah the led is blinking slowly and the disc are spinned down, so I am pretty sure it is not being accessed. My concern is not so much security, as is the noise- the fan is constantly running and in complete silence at night it is pretty disturbing.
I don't really mind waiting for it to power on when needed, but I would like it to be started automatically when someone tries to access it, instead of having to manually run a wake on LAN utility, but that sems to be rather complicated to set up.