Unable to authenticate Microsoft Authenticator login, endless loop

Question

I got a new phone and was attempting to use my Microsoft Authenticator app, but in order to log in I need to use the Microsoft Authenticator app. I can't input the two digit code because I can't use the app, and there seems to be no other way for me to get in (no other access codes, nothing I can input from my work desktop). I've tried deleting the app and re-adding my account. It says this when I do:

Request Id: [Moderator note: personal info removed]

Correlation Id: [Moderator note: personal info removed]

Timestamp: [Moderator note: personal info removed]

How can I authenticate Microsoft Authenticator without Microsoft Authenticator??

Answer 1

Don't use MS products. That'll fix it.

Answer 2

Hi @Huebel, Sophia (ELS-HBE),

Thank you for posting on Microsoft Q&A forum and I'm sorry to hear you're having trouble logging into your Microsoft account. 

This issue commonly occurs when your Multi-Factor Authentication (MFA) settings need to be reset, particularly after changing devices or reinstalling the Microsoft Authenticator app. Since your new device hasn’t been configured with the Authenticator yet, you're currently unable to access your account. Because the app remains linked to your previous device, it can’t generate valid verification codes, leaving you unable to complete the sign-in process.

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As the account type has not been specified, I may not be able to provide an exact solution. If you are using a work account, please refer to the following steps intended for end-users. Should you be an administrator addressing an Authenticator-related issue, kindly inform me so that I can provide guidance tailored to administrative role.

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Since you are using a work or school email address, the MFA settings are managed by your organization's IT department. For assistance with resetting or updating your MFA, you will need to contact them directly to resolve this. 

Please contact your company's IT Help Desk or support team and explain the situation. You can say: "I am stuck in a login loop with the Microsoft Authenticator app. I cannot get the code to sign in." 

Specifically ask them to “Reset my MFA settings or allow me to re-register for MFA". This is a standard request, and your organization's IT team should be able to assist you with it.

You can also share the steps in this Microsoft article for them so they can help reset your MFA settings for you Manage user authentication methods for Microsoft Entra multifactor authentication.

Once your organization's IT admin has reset your MFA, the next time you log in to your account, you will be guided through the process of setting up the Microsoft Authenticator app again from the beginning by scanning a QR code. This will break the loop and allow you to access your account normally. 

Please note that forum moderators do not have access to user account settings and cannot assist with logging in, resetting passwords, or changing access rights. While we do not have access to internal systems or administrative tools required to resolve account-specific or backend-related issues, we’ll continue doing our best to support you within the scope of our responsibilities.   

I hope this helps you regain access to your account quickly. I'm glad to assist and truly hope the information provided has been useful. Please feel free to reach out anytime if you need further assistance.

If you find my post helpful, kindly consider marking it as the accepted answer. Doing so can assist others in the community who may have similar questions in finding solutions more quickly.Thank you for your kindness and contributions to the forum.

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Answer 3

If you are unable to authenticate using the Microsoft Authenticator app on your new phone, you may need to use alternative methods for multifactor authentication (MFA). Here are some steps you can take:

1. Use SMS or Call-Based MFA: If you have SMS or call-based MFA set up, you can receive verification codes via text message or phone call. Ensure that the phone number associated with your account is active and can receive these messages.
2. Contact IT Support: If you cannot access your account using the above methods, reach out to your IT support team. They can assist you in resetting your MFA settings or provide alternative authentication methods.
3. Use Backup Codes: If you have previously set up backup codes for your account, you can use one of those codes to log in.
4. Check for App Passwords: If your organization allows the use of app passwords, you may need to create one to log in to non-browser applications.
5. Sync Device Clocks: Sometimes, issues with MFA can arise from the clocks on your devices being out of sync. Ensure that the date and time settings on both your computer and mobile device are correct.

If you are still having trouble, you may need to reset your MFA settings through your organization's admin portal or contact Microsoft support for further assistance.

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References:

• Frequently asked questions about Microsoft Entra multifactor authentication
• Troubleshooting phone options

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