Cannot access my school account anymore

Hi @Alison,

I’m really sorry you’re running into this. From what you’re describing, it does sound like you’re currently stuck in an MFA (multi‑factor authentication) loop with Microsoft Authenticator, where the verification prompt keeps redirecting you back without actually delivering a code.

When you’re unable to receive verification requests or codes through the Microsoft Authenticator app, the most effective way forward is to contact your school’s Microsoft 365 administrator. They have the ability to reset your MFA configuration on the system.

Please ask your administrator to follow the steps in this guide to revoke existing MFA sessions and require re-registration: Manage authentication methods for Microsoft Entra multifactor authentication - Microsoft Entra ID |…  This process usually only takes a few minutes.

After they complete this reset, your previous sign‑in sessions will be cleared, and the next time you sign in, you’ll be prompted to set up MFA again from the beginning. In most cases, that resolves the issue and allows verification codes or prompts to come through properly.

If you’re not sure who your school’s Microsoft 365 admin is, this article can help you find the right contact: How do I find my Microsoft 365 admin? - Microsoft Support

As a forum moderator, I don’t have access to individual user accounts, nor do I have the ability to reset MFA or authentication settings. Those actions can only be performed by your school’s Microsoft 365 administrator. That said, I’m here to help point you to the right steps and the right people so you can get this resolved as smoothly and quickly as possible.

I truly hope this helps you get back into your account soon, and fingers crossed everything is back on track for your schoolwork. If anything is unclear or you hit another roadblock, feel free to follow up here.

Thank you for your understanding.

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For a school (work or school) account where Microsoft Authenticator is the only method and it no longer works, resolution depends on your organization’s IT/admin because self-service options are limited.

Use these steps and escalation paths:

1. Try alternate verification methods or networks
   • On the verification screen, look carefully for options like “Try another verification method” or “Use a different verification option”. If any non‑Authenticator method (SMS, email, phone call) is available, use that to sign in and then update your security info.
   • If you see a “Try another verification method” message but are blocked, possible reasons include unusual activity, high volume of requests, or traffic from a risky location. To clear this:
     1. Try another method: If any other method is listed (SMS, alternate email), choose it instead of the app.
     2. Try another network: Switch between Wi‑Fi and mobile data, or use a different Wi‑Fi network.
     3. Wait: If there have been many attempts, wait at least 24 hours (up to a week in some cases) without further attempts so the block can clear.
2. If verification codes are not arriving
   • Microsoft may temporarily block sending codes due to unusual activity or too many repeated requests. In that case, avoid repeated attempts and wait for the temporary block to clear.
   • If SMS or email are configured but not working:
     • Check if the phone blocks texts from unknown numbers.
     • Ensure the inbox is not full and the messaging app is working.
     • Confirm that a VOIP number is not being used; VOIP numbers cannot receive sign‑in verification codes.
     • For email codes, check the junk/spam folder for messages from @accountprotection.microsoft.com and mark that sender as trusted.
3. If completely stuck in an Authenticator loop
   • For a work or school account, if the only configured method is the Authenticator app and it no longer works, self‑service recovery is usually not possible.
   • In that case, contact the school’s IT help desk or administrator and ask them to:
     • Clear or reset the MFA settings for the account, or
     • Enable re‑registration of MFA for the user.
   • After IT clears the settings, the next sign‑in will prompt to set up two‑factor verification again with a working method (Authenticator, SMS, etc.).
4. If sign‑in attempts are rate‑limited or blocked
   • Microsoft Entra multifactor authentication can block sign‑ins after multiple attempts or unusual activity. If this happened:
     • Wait for the lockout period to expire (often about 24 hours) before trying again.
     • When trying again, avoid many rapid retries and, if possible, use a different MFA method.
     • If suspicious activity is suspected, contact the school’s IT admin and ask them to review the Microsoft Entra sign‑in logs and assist with access.
5. If the device with Authenticator is lost or unusable
   • For a lost or non‑working device, the guidance is:
     • Sign in using a different method (if any exists), or
     • Ask the organization’s Help desk to clear the MFA settings so registration can be done again on a new device.

Because this is a school account, only the school’s IT/Help desk or tenant administrators can reset or clear MFA for the account; Microsoft consumer support and public forums cannot override these protections.

References:

• Common problems with two-step verification for a work or school account
• Locked out of my Outlook account and recovery options not working - Microsoft Q&A
• I have a Micrsoft business account and I am the admin and the only user registered under this account. I can't log in because i have replaced my phone and the authenticator doesn't work. - Microsoft Q&A
• I need to speak with a real person and it seems impossible. - Microsoft Q&A
• Reset Personal Azure MFA - Microsoft Q&A
• Microsoft Authenticator app doesn't show 6-digit OTP code - Microsoft Q&A