Hello, I have a slight problem with my NAS server and i think the only place i would find answers is here So i have a zyxel nsa 221 and its running completely fine , i was running a 2tb internal drive with it and had movies in , then i wanted to rebuild my entire movie collection and went to a friend with an additional 2TB disc. We first formatted the drives NTFS and then copied all the collection to this 2 x 2TB discs , everything went smoothly and i can see all the movies inside the drives when i attach them to my computer , but NAS server does not detect them in any ways , i tried to attach one first and then second one but nothing. In the front panel of the NAS i can see the 2 HDD's lights are on (which means it recognises that the drives are installed) but when i go to Web Interface it shows as if there are no drives attached. I can see all my drives which are attached via USB.But cannot see any internal drives , again when i attach them to my computer , no problem i can see all files. Is there anything i'm doing wrong or missing here? Why would the NAS refuse to detect my drives? Say 1 ok. But both of them? I would really appreciate if you can help me out PS:I attached the webinterface picture showing no internal drives but all the externals are ok.