I have the same problem. I am new to Freenas and am trying things before I commit to buying 3x3TB NAS disks. I have just bought a HP Microserver and want to set up a NAS to share home type data - ie word, photos, videos. media streaming, - I also have a Crashplan account and want to try the new plugin before jumping into FreeNAS head first. I have 3 x Windows 7 PCs and a Macbook (Mavericks). I have set up 1 x 250GB disk as a UFP volume. (I will use ZFS when I have become familiar and am sure I can get to grips with FreeNAS.). I have set up a CIFS share and followed some online instructions on a basic setup. However I am unable to copy any files to the share from my macbook - I can access the share but cannot paste anything to it. I have not tried adding files from a Windows machine yet. When accessing via SMB I get an error message saying that I do not have permission when trying to paste a file. I have played around with permissions on the volume and also on the share but no joy. I have looked at the file permissions on the OSX side and I do have write permission for the files I have tried to copy/paste. I have also tried an AFP share and get the same problem. Have tried both as guest and also as my 1 named user. Still get the permissions error. Any ideas gratefully received.