I have a costumer, who are using Azure AD and Office 365.

All client computers (Windows 10) are Azure domain joined.

In Azure we have a NAV 2017 server ( Windows server 2016 with NAV 2017 10.0.18197.0) installed.

All client can connect and use NavUserPassword.

If I make another instance and set it to Windows Authentication i doesn't work on the client, but fine with the admin account.

What I think is wrong, is that the users are signing on to there laptops using e-mail and password.

But when i sign in to the server and test it from there i'm using domain\username....

Can someone point me in the direction, for getten NAV 2017 and Azure AD login to work?