• Microsoft Office On Mac Free
• Can't Help

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Mar 10, 2020 Update history for Office for Mac. 3/10/2020; 4 minutes to read +5; In this article. Office for Mac that comes with an Office 365 subscription is updated on a regular basis to provide new features, security updates, and non-security updates. If the Update option is missing or you're unable to update, try Microsoft Update to install your Office updates through Windows. To download an update manually, see Office Updates. If you would like to update Office but can't open any of your Office apps, try repairing your Office suite: Go to Control Panel Programs Uninstall a program. If you installed Office 2016 for Mac back in September but haven't been able to update the suite since, here's a look at some troubleshooting tips. How to Fix Microsoft Office AutoUpdate for Mac.

Note

Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.

Symptoms

When you try to activate or sign in to any of the Microsoft Office 2016 applications after you install the version 15.33 update, you receive a blank authentication screen. Additionally, you may see any of the following symptoms.

Symptom 1

The following issues occur in the Unified Logging Service (ULS) log:

• The server has redirected to a non-https URL.
• Errors occur in Azure Active Directory Authentication Library (ADAL) authentication.

To locate the ULS log, open Finder and browse to the following path:

Microsoft excel upgrade for mac. NoteLicense microsoft office lifetime mac. <Application> represents the name of the application that you are troubleshooting.

Symptom 2

You notice that in an HTTP trace, the server response includes multiple WWW-Authenticate headers, such as the following:

Cause

The symptoms occur for the following corresponding reasons:

Cause for symptom 1

Starting from Office 2016 for Mac version 15.33, unsecured endpoint traffic is blocked in authentication flows.

Cause for symptom 2

Starting from Office 2016 for Mac version 15.33, the authentication method no longer selects NTLM authentication when multiple WWW-Authenticate headers are present in the response. The issue occurs when the selected authentication method is unsuccessful.

Microsoft Office On Mac Free

Resolution

Resolution for symptom 1

Configure all authentication endpoints to use the Secure Sockets Layer (SSL) protocol.

Resolution for symptom 2

Install the September 2017 update for Office 2016 for Mac version 15.38.

More Information

More information for symptom 1

Can't Help

The resolution applies when you use Microsoft Active Directory Federation Services or non-Microsoft federation solutions.