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Microsoft Authenticator Error

JosephStauder-3840 0 Reputation points
2026-01-20T19:26:18.96+00:00

The authenticator code I enter is not working. which was generated on the authenticator app, attached to my Microsoft account.

Microsoft 365 and Office | Subscription, account, billing | Other | Windows
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  1. Alex_T 6,385 Reputation points Microsoft External Staff Moderator
    2026-01-21T20:07:12.4666667+00:00

    Hello JosephStauder-3840,

    Thank you for reaching out in Microsoft Q&A forum.

    I understand that the verification code generated by Microsoft Authenticator is being rejected when you try to sign in to your Microsoft account.

    This usually happens when the Authenticator app is no longer properly synchronized with your account. Common causes include changing phones, reinstalling the app, device time not being synced automatically, or recently updating your security information.

    Please try these steps:

    1. Check device time settings
      • Make sure your phone’s date and time are set to Automatic, then reopen Microsoft Authenticator and generate a new code.
    2. Confirm you are using the correct account entry
      • If your Microsoft account appears more than once in Authenticator, remove duplicates and use the most recent entry.
    3. Remove and re-add Microsoft Authenticator
    4. If you cannot sign in to security settings

    If Authenticator was set up on an old phone that you no longer have access to, recovery is required before new codes will work.

    Let me know how it goes


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  2. AI answer

    2026-01-20T19:26:24.83+00:00

    If the authenticator code generated by the Microsoft Authenticator app is not working, it could be due to a few common issues:

    1. Clock Synchronization: Ensure that the clock on your mobile device is synchronized with the correct time. If the time on your device is out of sync with the server, the codes generated may not be valid. You can check and adjust the clock settings on your device to ensure they are correct.
    2. Expired Code: The codes generated by the authenticator app are time-sensitive. If you are entering the code after a few minutes, it may have expired. Try generating a new code and entering it promptly.
    3. Multiple Accounts: If you have multiple accounts set up in the Authenticator app, make sure you are using the code for the correct account.
    4. MFA Authentication Timed Out: If there was a delay in entering the code, the authentication process may have timed out. Restart the login process and request a new code.

    If these steps do not resolve the issue, you may want to check for any updates to the app or consult Microsoft support for further assistance.

    AI-generated content may be incorrect. Read our transparency notes for more information.

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