Hi,   The only way to join a NPS server to the Azure AD is through AADS (Azure AD Domain Services) Because this is a managed AD there are some limitations.   - You cannot register the NPS server in the AD, this only breaks the integration with the dial-in properties tab of the user. So you can ignore this one. - Single sign-on will not work from on-premise domain joined devices, i tried to fix it with re-write rules in the NPS because the Azure AD will use the UPN and the on-prem netbiosdomainname\u.name. This also didn't work.   https://cloudinfrastructureservices.co.uk/how-to-setup-radius-server-2016-in-azure-for-wireless-authentication/   @PhilipDAth suggested JumpCloud, maybe that worth to look at. But it replaces your Azure AD ... View more