The authenticator app is not receiving notifications

Hello @Elvira Kastelein,  

Thank you for posting your valuable question on Microsoft Q&A forum.   

I'm very sorry for the inconvenience you’ve experienced, based on the details you shared. May I ask if you have any alternative method to sign-in besides Authenticator? If yes, please try sign-in using this alternative method. 

If you don't have any alternative sig-in method, could you please confirm that you are using a school or work account associated with your organization’s domain, or a personal account (e.g., Outlook.com, Gmail, Hotmail, Yahoo)? 

For a school or work account, you may find this instruction helpful: 

If you are the end-user of your organization, I would recommend you contact your organization account's Admin to reset your MFA settings through the Microsoft Entra Admin Center. Ask your administrator to follow these steps:    

• Go to Microsoft Entra Admin Center: https://entra.microsoft.com  
• Navigate to Users > All Users.  
• Select your user account.  
• Go to Authentication Methods.  
• Click "Require re-register multifactor authentication".  

This will reset your MFA settings. The next time you sign in, you’ll be prompted to set up the Authenticator app again using a QR code.  

If you're an IT admin, please check to see if there are other IT admins in your organization who can help you with the reset. 

If you are the only administrator in your organization,  then you need to involve Microsoft data protection team. Please try to find the related hotline number to call the frontline and let them raise a ticket for you: Customer service phone numbers - Microsoft Support 

Please carefully follow this instruction to ask for Microsoft Data Protection team support:   

Depending on your country or region. For some countries, when calling the support number, although there are about 30 seconds opening as something "you can visit the link...." But you can ignore this opening and wait until the option, then "1" as a business email user, "1" again for technical help.   

For some countries, it will be an automated conversation like:    

First, when you call the hotline, it asks what kind of problem you are worried about.   

Answered: authenticator.   

A: What kind of product are you using?   

B: Office 365 for business.   

A confirmation: education or company account?   

B: For companies   

A: Are you an administrator?   

B: Yes.   

A: Do you have the other admin in your organization?   

B: No.   

A: You need one.... Service request?   

B: Yes   

If your organization's Office 365 Business/Education subscription is from a partner or reseller, and the global administrator is unable to open a service request on your end, contact the reseller's support provider to help open a service request on behalf of you instead.   

If you’re using a personal account, please let me know so I can provide the most appropriate guidance. 

Please understand that forum moderators have no control over user accounts, especially when it comes to logging in to your account, resetting your password, changing your access, etc.   

If you need any further assistance or need help on any process, please feel free to reply. I'm here to help!  

Thank you for your kindness and understanding so far!  

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". 

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread. 

If your authenticator app is not receiving notifications or codes, there are a few steps you can take to troubleshoot the issue:

1. Check Internet Connection: Ensure that your device has a stable internet connection, as the app requires it to receive notifications.
2. Refresh the App: Open the Microsoft Authenticator app and pull down to refresh or tap the refresh button to see if the notifications appear.
3. Use Verification Codes: If notifications are not working, you can use the app to generate a verification code manually. After entering your username and password, look for the code in the app and enter it into the sign-in interface.
4. Check for App Updates: Make sure that your authenticator app is updated to the latest version, as updates may fix bugs or issues related to notifications.
5. Reinstall the App: If the problem persists, consider uninstalling and reinstalling the app. However, ensure you have backup codes or alternative methods to access your account before doing this.
6. Alternative Methods: If you are in a region where push notifications are blocked (like in China for Android devices), consider using alternative authentication methods such as SMS or phone calls for verification.

If you've tried these steps and are still having issues, you may need to contact support for further assistance.