After setting up MFA (Multi-Factor Authentication) on Office 365 in conjunction with Azure AD MFA I cannot get my users to authenticate. Skype for Business and Outlook can authenticate just fine using app passwords, but for some reason I’m not aware of, OneDrive doesn’t like it the app password. I can see in that my AD FS (Active Directory Federate Services) URL is being pulled into the forms based authentication pop up. It doesn’t matter what form I try such as domain\username or email@example.com or firstname.lastname@example.org with O365 app password or AD password. I do NOT have an on-premise Exchange server. Everything is on Server 2012 R2 and all my client machines are Windows 10.
Any ideas on how to resolve?