I had this exact issue on another machine, that after 2.5 hours on the phone with MS support (via Zoom), the solution was to uninstall MS Office 365 and reinstall it. Spent weeks with MS support and he got rather irritated when they told him to disable ADAL. He then started digging into Windows and how modern auth works and came across the above fix.

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I do NOT have this issue with the other laptop, an iPad, a MacBook Pro and tablet. But as soon as i log out and log back in, the plugin desactivates itself and the authentication bug comes back. Get a free trial to explore all the solution’s data protection capabilities. Domain verification issues can also prevent the normal use of the Microsoft Office 365 suite. Organizations value the capabilities that the Microsoft 365 suite provides for shared access and simultaneous file editing for team members.

Accidental deletion of important files

To diagnose and automatically fix several common Microsoft 365 sign-in issues, run the Microsoft 365 Sign-in troubleshooter. The authentication issue occurs because of missing package information about either the Active Directory Authentication Library (ADAL) or Live ID. This issue occurs only on computers that are running Windows 10, version 1703 or later, and Microsoft 365 version 1807 or later. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. I figured it was a bad credential, and everyone mentioning ADAL pointed me to the right one.

Fix authentication issues in Microsoft 365 apps when you try to connect to a Microsoft 365 service

They can either be simple, like the OneDrive service not running or the missing OneDrive icon on the taskbar, or more complex, like OneDrive conflicting with Microsoft 365. Below we provide a more detailed list of issues and corresponding solutions. Editing file permissions and providing users with appropriate access is a simple way to solve such Microsoft 365 problems. To fix these related Office 365 issues, you can try disabling Add-Ins and then running Microsoft apps without them. Check the Add-Ins installed in your Microsoft 365 apps.

Use the NAKIVO solution to back up Microsoft 365 data in Exchange Online, Teams, OneDrive and SharePoint Online for uninterrupted workflows and zero downtime.After looking deeper into my problem with my RDS servers, the only solution I found is to run the script of @spiceuser-lijul into a GPO at each user logon.However, sometimes employees may not have the required permissions to open and edit an item.This error appears when you attempt to upload or save a Microsoft 365 item.If i run and install the AAD Plugin as shown, it’s fixing the issue.

Microsoft 365 Issues with the Safari Browser

The good news is that the majority of problems can easily be solved on the client’s side. Microsoft recommends updating Windows, Microsoft Office and other software regularly. Microsoft updates are released on a regular basis and allow you to protect software against known threats, fix bugs, and so on. Office 365 known issues are usually fixed by these updates. Let’s find out what you can do if updates are not installed automatically, and what factors can cause update issues. Reboot your system and try to launch your Outlook app after to check if the synchronization issues are solved.

How do I fix login problems?

Check POP3 and SMTP settings for connecting to Microsoft mail servers (addresses of servers, ports, encryption, authentication). If you use Microsoft Office 365 Outlook as a standalone email client, and you cannot send and receive email messages, check the Outlook connection settings. Make sure that network access to the Microsoft servers is not blocked. Check the firewall on your computer, the router, and DNS configuration.

Information and fixes from Microsoft have been scant as well, outside of the registry key one. Office 365 troubleshooting is an important aspect of building a secure and reliable IT environment. In addition to the Office 365 problems explained in the blog post, you may encounter issues that cause data loss. If you want to use Office 365 applications installed on a terminal server, Microsoft 365 password reset help you should use Office 365 Pro Plus, which supports Shared Computer Activation.

Office 365 won't log in without EnableADAL = 0

As soon as he figured it out he handed the full fix to MS support with all instructions as shown above. So hopefully the official MS support answer and documentation will change. It’s nuts to me that MS has had this issue for YEARS and has just been duck taping it and moving on. Disabling ADAL can "fix" the issue with outlook but in our experience it still left TONS of other stuff broken.