I created my own virtual lab using hyper-v with an internal network switch. Both of them have been assigned a static IP as I don't run an AD yet, network connection works fine as I can ping each computer.
I've created a shared folder using an admin account on one of the Windows operating systems. In advanced sharing, I removed "everyone group" and added "users and administrators groups. I changed permissions of each group to my requirements - the admin group has full control, and the users group read only.
The inheritance is enabled in the security tab. Accessing the shared folder using an administrator account from a local disk C doesn't cause any issue - it has full control permission.
When I try to create a new folder inside the shared folder in the Network tab - I don't have full control. It looks like it accesses it through the admin account, however only in the context of the users group privileges???? When I change users group permissions to full access, everything is working.
I double-checked and the account I try to create a new folder with is an administrator and it belongs to the administrators group.
Once I add that specific account to a share permission tab, everything is working. How is that possible? This account belongs to the administrators group so logically any administrative account should work.