So I'm a OMV newb and not a big fan of SMB due to it's tendency to keep phantom network shares floating around Finder sidebars are being disconnected.
So why can't I use AFP?
I created a user fo myself with default settings. Doubled checked its part of the 'users' group.
I created a Shared folder, added it to Apple Filing shares with default permissions.
Now I can access the share fine with AFP via the Guest account.
I can access the share fine via SMB with my user account credentials.
But no matter what I try, Finder always just says 'Connection Failed' when using AFP and my user account credentials