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MFA & Verification Issues

Fix Microsoft Authenticator Not Sending Notifications or Codes

Maira MehtabMaira Mehtab Sep 20, 2026 868 views

Question details

The user is unable to receive sign-in approval notifications or verification codes via the Microsoft Authenticator app when attempting to access their Microsoft email.

Product
Microsoft Authenticator / Microsoft Email
Device & OS
not provided
Scenario
Signing into a Microsoft email account that requires Multi-Factor Authentication (MFA).
Observed behavior
The Authenticator app fails to deliver push notifications or display the required verification codes, preventing the user from logging in.
Before you start

Verify that your mobile device has a stable internet connection, turn off 'Do Not Disturb' mode, and ensure that notifications are explicitly enabled for the Microsoft Authenticator app in your device's system settings.

Solution 1Recommended

Request an MFA Reset from Your IT Administrator

Use this solution if your Microsoft email account is provided by a work or school organization.

Organization-managed accounts have strict security policies. If your authenticator stops working, only an administrator with access to the Microsoft Entra ID (formerly Azure Active Directory) admin center can reset your required authentication methods.

1
Contact IT Support

Reach out to your organization's IT department or system administrator via phone or an alternative communication channel.

2
Request Method Reset

Explain that you are not receiving Authenticator notifications and ask them to clear your existing MFA sessions and require re-registration.

3
Set Up Authenticator Again

Once the admin has reset your account, attempt to sign in to your email again. You will be prompted to set up the Microsoft Authenticator app from scratch by scanning a new QR code.

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Frequently Asked Questions

Why is my Microsoft Authenticator app not receiving push notifications?

This usually occurs due to poor network connectivity, strict battery optimization settings on your phone that restrict background app activity, or the app losing synchronization with Microsoft servers.

Can I use Microsoft Authenticator without an internet connection?

Yes. While push notifications require an active internet connection, you can still open the Authenticator app and manually type in the 6-digit time-based code, which generates automatically every 30 seconds even when offline.

How do I transfer Microsoft Authenticator to a new phone?

If you enabled cloud backup in the Authenticator app on your old phone, you can recover your credentials on the new device by signing in with your recovery account. If you didn't, you will need to ask your IT admin to reset your MFA or use backup codes to set up the new device manually.

What should I do if my Authenticator code is constantly rejected?

Go to the Settings menu inside the Microsoft Authenticator app and look for the 'Time correction for codes' or 'Sync time' option. Tap it to ensure your app's internal clock is perfectly synced with Microsoft's servers.