

this is only happening when using a non directory synced account.

When i sign into the device using a domain syned account everything works fine. that's when a legacy authentication window comes up so i enter in the credentials again and it works again for 2 minutes and it comes back for authentication. Each time you run Office 365 Support and Recovery Assistant, it automatically gets updated to its latest version, so it can troubleshoot any new Outlook problems. File-> Account Settings-> Account Settings-> double click on your Exchange Online account-> More Settings-> tab: Advanced-> enable: Turn on shared calendar improvements. Turn on the preview for faster and more reliable updates to shared calendars. outlook then works fine for a period of 2 minutes. For shared calendars in Office 365, Outlook can update these calendars using the REST API. Office 365 Support Corner: These videos are created by Microsoft 365 support engineers to help you learn more about Microsoft 365, and are focused on support trends and top how-to questions and issues.

I am in the process of setting up Autopilot with cloud only users and am having problems with Office 365 Outlook, once the device is setup and office is installed i launch outlook and it creates the profile using Autodiscover and credentials are confirmed using modern authentication. How do I fix this issue Uninstall the recent updates (KB2837618 or KB2837643) Disable the Show only subscribed folders option in Outlook Changing the root.
