I set this NAS up about a year ago and everything worked great until a few months ago when users no longer got prompted that the file was open and they could only open it as read-only. Now they can open the file in normal read-write mode but if someone else is working on it they can't save changes. I would like the file to lock if someone has it open.
Recently, this file became invisible to the Mac users except one who had admin rights on the NAS and only the PC's users can access it. The Read-Write issue still exists. I am stumped.
1. Need to have read-only on the xlsx file when another user has it opened.
2. Need to have the file visible to Mac users.