Airport Hard Drive Permissions

Hello, I have a AirPort Extreme with a 3T hard drive connected to it. and If I check the permissions via my computer it says

(Unknown) Read& Write

everyone No Access

I have no idea who unknown is, and If I try to change the privieges, it tells me i dont have the permissions to make theses changes. I am an admin, and I did try to go in has root. Still no luck. So My Media hubs cant access the files on my HD.

Please help/