Hi,
Which types of storage objects are involved on the NetApp side? Is the share a volume? What about the problematic folder, is it just a folder, or is it a separate qtree?
If it is just a folder, then the issue should be solvable by the owner / from the windows side.
If it is a NetApp qtree then these have their own security/access properties ...
Take a look at the output from ontap commands such as: "qtree status" and "cifs status", note the security style reported in the output.
See also Knowledge Base entry 1012304: https://kb.netapp.com/support/index?page=content&id=1012304
An ONTAP command "fsecurity" may also be useful.
On Windows I often use an open source tool called "setacl". See: http://sourceforge.net/projects/setacl/
Good luck.
Yours,
Robb.