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Authentication Session Has Expired Microsoft Office Mac

Mac OneNote: Authentication Session has Expired; Please Sign-in Again

If a session is not established, you can get a session expired message immediately or very shortly after connecting to or logging in to a website. Virus or malware If your computer is infected with a virus or malware, it can cause problems with establishing or keeping an active session on a website. Office 365 keeps prompting for login credentials within Mac OSX? I came across a problem where a client of mine had bought and installed Office Suite 2016 she than upgraded to Office 365 Business Premium. If you see repeated prompts to grant access to the keychain when starting an Office for Mac app, Office may have been moved to a location other than the default /Applications folder. Serial key for train simulator 2015. Select Always Allow when prompted. You may encounter this dialog up to three times per app. To open the Office app, select its icon in the search results. When the Office app opens, accept the license agreement. Office is activated and ready to use. Note: The Activation Wizard appears if Office has trouble activating.

Question:

I haven't opened Mac OneNote in a long time, and when I open it today, I'm asked to sign in to my account again. So, click Sign in to my account.

Authentication Session Has Expired Microsoft Office Mac Free

Authentication Session Has Expired Microsoft Office Mac Enter the username, the password. OneNote pops up tip:
The authentication session has expired. Please sign-in again.
Enter username, password multiple times, it still pop up this dialog box. How do I fix it?

Solution:

Authentication Session Has Expired Microsoft Office Mac Os

  1. Open Mac 'Keychain app'.
  2. Select your default keychain on the left side, this is usually the 'login' keychain.
  3. Search the “Office”
  4. Delete all items in list.
  5. Finally, restart Mac system.

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Symptoms

In Microsoft Outlook 2016 for Mac, you are repeatedly prompted for authentication while you're connected to your Office 365 account.

Cause

This issue occurs because of the presence of duplicate tokens in the keychain.

Resolution

To resolve this issue in Outlook 2016 for Mac, install the February 2017 Outlook update (version 15.31.0) from the following Office website:

Workaround

To work around this issue, delete any cached passwords for your account, and also delete any modern authentication tokens from the keychain. To do this, follow these steps.

Note

These steps affect all Office applications that use modern authentication.

  1. Quit Outlook and all other Office applications.

  2. Start Keychain Access by using one of the following methods:

    • Select the Finder application, click Utilities on the Go menu, and then double-click Keychain Access.
    • In Spotlight Search, type Keychain Access, and then double-click Keychain Access in the search results.

  3. In the search field in Keychain Access, enter Exchange.

  4. In the search results, select each item to view the Account that's listed at the top, and then press Delete. Repeat this step to delete all items for your Exchange account.

  5. In the search field, enter adal.

  6. Select all items whose type is MicrosoftOffice15_2_Data:ADAL:<GUID>, and then press Delete.

  7. In the search field, enter office.

  8. Select the items that are named Microsoft Office Identities Cache 2 and Microsoft Office Identities Settings 2, and then press Delete.

  9. Quit Keychain Access.

    Note

    When you start Outlook, you are prompted to authenticate.