How to Fix Microsoft Teams SSO Authentication Popup Error

If you are using Microsoft Team you have been annoyed by one Bug which will frequently pop-up in the middle of the work, which asks to sign-in with your username and password.

The most annoying thing is you can’t able to close or cancel this popup, killing Teams via task manager or rebooting the PC is the only way to close the pop-up.

There is no explanation regarding this behavior from Microsoft. Some user has claimed the error originally occurred while editing any files like word/excel within Teams most probably this occurs when the file is in a folder linked to another SharePoint Document Library.

This popup seems to be more prevalent now. But if you choose to not sign in nothing happens.

Solution for Microsoft Teams SSO Authentication Popup

Option 1: Add Azure AD url in the browser trust site

You need to add Azure Active Directory (Azure AD) Seamless Single Sign-On (Seamless SSO) URL (https://autologon.microsoftazuread-sso.com ) into your browser intranet zones using the following methods:

If your PC not in the domain environment, you can manually add the Azure Active Directory (Azure AD) Seamless Single Sign-On (Seamless SSO) URL (https://autologon.microsoftazuread-sso.com ) into your browser intranet zones as follows:
  • Open Internet explorer
  • Go to Security
  • Select Trusted Sites
  • Click sites and add “https://autologon.microsoftazuread-sso.com
  • Close all the Windows

Now on the Microsoft Teams SSO Authentication Popup will never show up.

Option 2: Automate using Group Policy Object

If you are in the domain environment you can take advantage of group policy settings to push this update to all of your domain computers.

  • Open Group Policy Management Editor.
  • Edit Group Policy that applies to some or all users.
  • Go to User Configuration > Policies > Administrative Templates > Windows Components > Internet Explorer > Internet Control Panel > Security . Then select the location entry for assigning zones.

Option 3: Creating new Registry File using Group Policy

  • Open Group Policy Management Editor.
  • Edit Group Policy that applies to some or all users. This example uses the default domain policy.
  • Go to User Configuration > Preferences > Windows Settings > Registry > New > registry item.
  • Enter the following values in the appropriate fields, and then click OK .
    • Key path : Software \ Microsoft \ Windows \ CurrentVersion \ Internet Settings \ ZoneMap \ Domains \ microsoftazuread-SSO.com \ autologon
    • Value name : https
    • Value type: REG_DWORD
    • Value data: 00000001

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