Any idea how to fix a problem where the files on my NAS show: user "(unknown)" with read/write privileges group "(unknown)" with read only privileges everyone with no access Looking from the terminal, these directories show my username and group "staff" as owners. I'm unable to add permissions or change the file owner through Finder or the command line. As background: I used to use a Drobo for my bulk storage needs, and finally got fed up with their lack of support, junked it, and have been trying to adapt to the NAS world. I have a DS1515+, running DSM 6.1. I've copied my files from the Drobo to the Synology, including my iTunes library and I've been having a few headaches ever since (refusing to transfer files from an iPad, my podcasts have gone wonky, etc). Looking into it I'm seeing my files all have these weird permissions issues. Anybody have any experience with this?