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MICROSOFT OUTLOOK 2016 KEEPS ASKING FOR PASSWORD PASSWORD
MICROSOFT OUTLOOK 2016 KEEPS ASKING FOR PASSWORD WINDOWS

If that works, roll it out with a Group Policy Object (GPO).Įxit Outlook and start Registry Editor on the system that is having the problem. I recommend to add the registry key for the user only and start Outlook. Add registry key AlwaysUseMSOAuthForAutoDiscover Was modern authentication already enabled? That’s great and proceed further. Click on Save.Īfter enabling modern authentication, follow the next step.

MICROSOFT OUTLOOK 2016 KEEPS ASKING FOR PASSWORD WINDOWS

At the top, click on Services, scroll down, and click on Modern authentication.Ĭheck the checkbox Turn on modern authentication for Outlook 2013 for Windows and later (recommended). In the left-hand navigation, click on Settings and follow with Org settings.

Add a registry key on the computers to force Outlook to use the newer authentication methodĮnable modern authentication in Microsoft 365 admin center.

Enable modern authentication in Office 365 admin center.

Outlook doesn’t use modern authentication to connect to Office 365. Note: From August 1, 2017, modern authentication is enabled by default for Exchange Online and Skype for Business, and SharePoint Online.

You migrate your mailbox to Office 365 from an Exchange server that Outlook connects to by using RPC.

Microsoft Outlook connects to your primary mailbox in an on-premises Exchange server by using RPC, and it also connects to another mailbox located in Office 365.

MICROSOFT OUTLOOK 2016 KEEPS ASKING FOR PASSWORD PASSWORD

Why did Outlook not accept the credentials, and what is the solution for Outlook prompts for password after migration to Office 365? Solution for Outlook prompts for password after migration to Office 365Ī couple of scenarios of how this can happen: The only Exchange Server that is going to stay on-premises is the Exchange Server 2016. After the migration to Office 365 completes, the decommission of Exchange 2010 servers will start. The Exchange Server 2016 is going to be the Exchange Hybrid server. Looking at the organization, we can see that three Exchange Servers are running: Filling the credentials will not help you because it keeps asking for credentials. After waiting for minutes, a prompt shows up to enter credentials. After you finish completing the mailbox to Office 365, the user starts Outlook.

The mailboxes/mailbox databases are currently on Exchange 2010. Outlook prompts for password after migration to Office 365

Add registry key AlwaysUseMSOAuthForAutoDiscover.

Enable modern authentication in Microsoft 365 admin center.Solution for Outlook prompts for password after migration to Office 365.Outlook prompts for password after migration to Office 365.