MFA & Verification Issues

How to Fix Outlook Sign-In Loop with Microsoft Authenticator

Natalie Taylor Oct 12, 2026 869 views

Question details

The user is unable to log in to Outlook because the Microsoft Authenticator app is stuck in a loop, requesting a verification code from itself to grant access.

How to Fix Outlook Sign-In Loop with Microsoft Authenticator

Product: Microsoft Outlook and Microsoft Authenticator
Device & OS: not provided
Scenario: Attempting to sign in to an Outlook email account that has Multi-Factor Authentication (MFA) enabled.
Observed behavior: Outlook redirects the login request to Microsoft Authenticator, but the Authenticator app itself demands a code to open, creating an endless loop that completely blocks account access.

Before you start

Before troubleshooting, determine whether you are trying to access a company/school account or a personal Microsoft account, as the required recovery methods and administrative permissions differ significantly.

Solution 1Recommended

Contact Your IT Administrator (For Work or School Accounts)

If you are using an organizational account, your IT administrator has the exclusive permissions required to reset your authentication methods.

Work and school accounts are managed by organizational policies. When an Authenticator loop occurs, you cannot bypass it yourself. Your IT department must intervene to clear the corrupted MFA session.

Reach out to IT Support

Contact your organization's IT helpdesk or system administrator via an alternative communication method.

Request an MFA Reset

Ask the administrator to reset your Multifactor Authentication (MFA) settings or force an 'Require re-register MFA' action on your Microsoft Entra ID (formerly Azure AD) account.

Ask for a Temporary Access Pass

Request that they issue a Temporary Access Pass (TAP). This allows you to sign in to Outlook temporarily without the Authenticator app so you can set up your security methods from scratch.

Contact Your IT Administrator (For Work or School Accounts)

Administrative Action Required: Only an administrator with the 'Authentication Administrator' or 'Privileged Authentication Administrator' role can perform these resets.

Solution 2

Use Alternative Account Recovery Options (For Personal Accounts)

For personal Microsoft accounts, use fallback security methods to bypass the Authenticator app loop.

Solution 3

Consult the Microsoft Authenticator Support Forum

If standard recovery methods fail, get specialized assistance from Microsoft's dedicated support community.

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1. Download WPS Office: Visit the official WPS website to download the free installer for your operating system.
2. Install the application: Run the setup file and follow the quick installation prompts to set up WPS Office.
3. Open your Microsoft files: Double-click your existing Office documents to open them directly in WPS Office and continue working without interruptions.

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Frequently Asked Questions

Why is my Microsoft Authenticator asking for a code from itself?

This usually happens when the Authenticator app is the only verification method linked to your account, and the app's internal security token expires or glitches. When you try to open the app, it prompts for authentication, creating a cyclical request.

Can I bypass Microsoft Authenticator if I cannot access my phone?

Yes, if you previously set up alternate verification methods like an SMS number, an alternate email address, or saved offline recovery codes. You can access these by selecting 'Sign in another way' on the login screen.

How do I remove Microsoft Authenticator from my account?

You must first log into your Microsoft account's Security Dashboard. Under Advanced Security Options, locate the Microsoft Authenticator app entry, select 'Remove', and confirm. You can then set it up fresh on your device.

What is a Temporary Access Pass (TAP)?

A Temporary Access Pass is a time-limited passcode issued by your organization's IT administrator. It allows you to sign in securely without needing a password or the Authenticator app, giving you the opportunity to re-register your MFA methods.

Login & Account Issues