ReadyNasDuo unreachable. Can't shutdown on powebutton

Hello guys,

Thank you for helping!

I have tried to press and hold the powerbutton for longer period than 5 seconds but the NAS just not reacts.
I use to shut the nas down every night before and it worked well. It reacted after holding the power button down
for a few seconds.

I have tried to pull the powerplus out and the NAS shuts down :)
and I can start it again pushing the power button.
After some syncing and checking (power button blinking) the NAS starts
but is not able to shut it down or access by the net.
It doesn't get any IP-address and it should get one specific.

In the administration for my router I can't see the NAS connected but all other
computers and mobiles. I have tried to exchange the network cable.

I have two Western Digital Green hard drives in there. 1.5Tb each. X-Raid
I haven't updated the firmware for a while and right now I don't know what version there's installed.

Best regards!