To use a network share as a network user data folder, the folder must have the appropriate security attributes.
To manually create network user data folders and set security attributes
Create or locate a network share on the computer where backup files will be stored.
On the Sharing tab, verify that Share this folder is selected.
Select the following permissions for user Everyone: Full Control, Change, Read.
Verify that the Inherit from parent the permission entries that apply to child objects check box is not checked.
Add Administrator and Everyone and give them full control permissions.
In this share, create a data folder for each user who will use this Storage Location, or verify that a data folder already exists.
Verify that the Inherit from parent the permission entries that apply to child objects check box is not checked.
Add Administrator and the user who will be assigned to the user data folder to the share permission list.