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Go to frontview-shares-click on each share and do the following.
Go to advance options.
change share folder owner to nobody.
change share folder group to nogroup.
Share folder owner rights: read/write
Share folder group rights: read/write
Share folder everyone rights: read/write
Check on :Set ownership and permission for existing files and folders in this share to the above settings. This option is useful in cases where you are changing security levels and need to workaround file access problems.
Check on: Grant rename and delete privileges to non-owner of file
Click apply.
This will reset everything on a share you must do this to all the shares you want to change.

Then go to the "cifs" tab for each share and check on the following:
Advanced CIFS Permission
Check on: Automatically set permissions on new files and folders.
Check on: Do not allow ACL changes to be more restrictive than this.
When new files are created over CIFS, set file permission as follows. Group rights are permission for members of the file owner's group. Everyone refers to all other users not in the file owner's group.
Group rights: Read/Write
Everyone rights: Read/Write
When new folders are created over CIFS, set folder permission as follows. Group rights are permission for members of the folder owner's group. Everyone refers to all other users not in the folder owner's group.
Group rights: Read/Write
Everyone rights: Read/Write
After that click apply. This will give everyone capable of logging into the nas full access.
