NFS only available when Guest access is allowed

Hi Folks

I have a QNAP NAS with serveral NFS folders.

Most of then has Guest Access set to denied and requires login.

But my my WD TV Live cannot see these folders unless I set the Guest Access to allowed.

Shouldn’t I just be able to login in to these folders or what ?

How are you accessing your NAs via the WDTV, media server or network share?

I have a synology and a “hidden” folder. I only see it when viewing the folders via network share.