N4100plus sort

Hi guys

I have a strange problem. I am using an N4100plus. I noticed that when open a folder in windows the files are not sorted properly. Usually first the folders from a-z and then files from a-z. In my case everything is mixed. ex. a folder beginning with A then a file beginning with B then a folder with D and so on.

What can i do to fix that. I already formatted the drives and built a new raid5 but it didn't help. on webdisk everything is normal.

I want the normal view back... like the folders on my local hard drive. folders first and then files.

Any suggestions?

M