MFA & Verification Issues

How to Fix Microsoft Authenticator Sign-In Loop for a Work Account

Maira Mehtab Sep 22, 2026 870 views

Question details

The user is trapped in an infinite multi-factor authentication (MFA) sign-in loop where the Authenticator app requires a verification code generated by the exact same app they are trying to access.

Product: Microsoft Authenticator
Device & OS: not provided
Scenario: Attempting to sign in to a Microsoft 365 admin center or configure two-step verification using a work account.
Observed behavior: The sign-in page requests a code from the Microsoft Authenticator app, but opening the app also prompts the user for the same code, preventing any successful sign-in or configuration.

Before you start

Verify that your Microsoft Authenticator app is updated to the latest version to ensure notifications and number matching features are fully supported before attempting a fix.

Solution 1Recommended

Use an Alternative Verification Method

Bypass the Authenticator loop by signing in with a backup method you previously configured.

If you previously added a phone number or an alternate email address to your account security info, you can use it to bypass the Authenticator app requirement.

Select an alternative sign-in option

On the Microsoft sign-in screen, click the 'Sign in another way' or 'I can't use my Microsoft Authenticator app right now' link.

Choose your backup method

Select an alternative verification method from the list, such as receiving a text message code or a phone call to your registered mobile number.

Enter the verification code

Input the code you received via SMS or call to securely log into your account.

Reconfigure your Authenticator app

Once logged in, navigate to 'Security info' in your account settings and delete the old Authenticator app profile before adding it again.

Solution 2

Contact Your Organization's IT Administrator

Have a secondary administrator reset your multi-factor authentication settings to clear the loop.

Solution 3

Contact Microsoft Data Protection (For Sole Administrators)

If you are the only administrator on the account and are locked out, you must contact Microsoft directly for account recovery.

Free Microsoft Office alternative

Try WPS Office: A Hassle-Free Alternative to Microsoft 365

Tired of dealing with complex sign-in loops and restrictive authentication requirements? WPS Office provides a lightweight, highly compatible, and completely free alternative to Microsoft Office. Enjoy offline editing without account lockouts, ensuring your productivity is never interrupted.

1. Download the installer: Visit the official WPS Office website and click 'Download WPS Office Free' for your device.
2. Install the software: Run the downloaded installation file and follow the straightforward on-screen instructions.
3. Start creating: Launch WPS Office to immediately open, edit, and save your documents, spreadsheets, and presentations.

Completely free to use with an intuitive, familiar interface.Fully compatible with Microsoft Office formats, including .docx, .xlsx, and .pptx.Lightweight installation and fast startup without mandatory online sign-ins.Built-in PDF editor, AI tools, and seamless cloud syncing options.

microsoft office alternative - wps office

Frequently Asked Questions

Why does the Microsoft Authenticator app ask for a code from itself?

This loop typically occurs when you switch to a new phone or restore the app from a backup without transferring the active account tokens. The system still thinks the app is configured, but the app itself lacks the proper credentials, causing it to ask for a code to authorize the very account it's trying to set up.

How can I prevent the Authenticator sign-in loop in the future?

To prevent this issue, always set up at least two verification methods for your account. Go to your Security Info settings and add a secondary method, such as a backup phone number for SMS or calls, an alternate email address, or a physical security key.

Can I remove the Authenticator app requirement myself if I'm locked out?

No, if you cannot log in, you cannot change your security settings. You must either use a previously configured alternative sign-in method or have your organization's IT administrator reset your MFA requirements.

Login & Account Issues