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We noticed that some people are having problems using Microsoft Office 365 with two-factor authentication (2FA) (also known as multi-factor authentication).
We have a few tips for you here.
First: It’s important to know that when your admin sets up 2FA for your Office 365 users, they must enable Modern Authentication (MA) for Exchange Online if users are accessing Exchange using Outlook 2016. (The versions of Microsoft Outlook before 2013 don’t support Modern Authentication.) For details on how to enable MA for Exchange Online tenants, see Enable Modern Authentication in Exchange Online.
Second: You shouldn’t have any problem using 2FA with Microsoft’s mobile Office apps, Outlook Groups, Office 2016 desktop apps, and OneDrive for Business in Windows 10. However, other applications may be incompatible, so make sure you test all the apps in your organization before enabling 2FA.
If you set up 2FA for tenant administrator accounts, they can’t sign in to Office 365 using PowerShell. Instead, you must set up a specialized account for administrators. To do this, you must install the Exchange Online Remote PowerShell Module and use the Connect-IPPSSession cmdlet to connect to Security & Compliance Center PowerShell.
Important note from Microsoft: You can’t use the Exchange Online Remote PowerShell Module to connect to Exchange Online PowerShell and Security & Compliance Center PowerShell in the same session (window). You need to use separate sessions of the Exchange Online Remote PowerShell Module.
This is what Microsoft recommends you do:
Windows Remote Management (WinRM) on your computer should allow authentication by default. If basic authentication is disabled, you’ll get an error message. Now you should be able to sign into the Security & Compliance Center PowerShell by using 2FA.
After you sign in, the Security & Compliance Center cmdlets will be imported into your Exchange Online Remote PowerShell Module session and tracked by a progress bar. If you don’t receive any errors, you’ve done this successfully.
If not, and you receive errors, check the following requirements:
Two-factor authentication (multi-factor authentication) can be enabled for individual users or in bulk. Before continuing, be sure to install Microsoft Authenticator on your user’s mobile devices, (not Authenticator, a similar app from Microsoft but without support for push notifications). Here’s what Microsoft says to do to enable 2FA one user at a time:
The MULTI-FACTOR AUTH STATUS should change to Enabled. Close the browser window and sign out of the admin portal.
Once the feature is enabled, the user must now enroll for 2FA, and sign into Office 365 with their username and password, and then click Set it up now on the sign in screen and follow Microsoft’s instructions below:
The user will receive a notification on their phone. They should open it, and they’ll be taken to the Microsoft Authenticator app.
Web-based and mobile apps can use Microsoft Authenticator app verifications for 2FA logins, but Office desktop apps require an app password.
This final step provides the user with an app password for these apps.
Important note from Microsoft: If you want to use only Multi-Factor Authentication for Office 365, don’t create a Multi-Factor Authentication provider in the Azure Management Portal and link it to a directory. Doing so will take you from Multi-Factor Authentication for Office 365 to the paid version of Multi-Factor Authentication.
We hope this helps. It can be complicated to implement the proper settings for two-factor authentication in Microsoft Office 365. If you have any problems doing this, feel free to contact our Microsoft Experts.
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