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MFA & Verification Issues

How to Fix Microsoft Authenticator Not Prompting for a Verification Code

Khadija KhanKhadija Khan Sep 28, 2026 869 views

Question details

The user is unable to receive multi-factor authentication (MFA) approval prompts or verification codes within the Microsoft Authenticator app.

How to Fix Microsoft Authenticator Not Prompting for a Verification Code
Product
Microsoft Authenticator
Device & OS
not provided
Scenario
Attempting to sign in to an account that requires multi-factor authentication for access.
Observed behavior
The Authenticator app fails to display an authentication code or approval prompt, preventing the user from successfully signing in.
Before you start

Verify that your smartphone has an active internet connection, disable battery saver modes that might restrict background data, and ensure you have an alternative verification method (like SMS or an alternate email) available.

Solution 1Recommended

Re-register Microsoft Authenticator via Account Security Settings

Reinstalling the app alone often does not fix a broken MFA setup. Re-registering your device from your account's web dashboard is the most reliable way to restore prompts.

If your Authenticator app has lost synchronization with the server, its background token may be invalid. You will need to remove the existing connection and create a new one using your account's security dashboard.

1
Sign in with an alternate method

Go to your account login page in a web browser. Enter your password, and when asked for the Authenticator code, select 'Sign in another way' to use SMS or your backup email.

2
Access security settings

Navigate to your account's security dashboard or 'Advanced security options' menu.

3
Remove the old registration

Locate the existing Microsoft Authenticator entry in your list of sign-in methods and click 'Remove' or 'Delete'.

4
Start a new MFA setup

Click 'Add a new way to sign in or verify' and select 'Authenticator app' to generate a new QR code on your computer screen.

5
Scan the new QR code

Open the Microsoft Authenticator app on your phone, tap the '+' icon to add an account, and scan the displayed QR code. If the camera fails, choose to enter the setup key manually.

Re-register Microsoft Authenticator via Account Security Settings
MFA Reconnected: Once the new QR code is scanned, test the connection by signing out of your web browser and signing back in to trigger a new prompt.
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Frequently Asked Questions

Why is Microsoft Authenticator not sending push notifications?

Push notifications may fail if your phone has a poor internet connection, if a strict battery saver mode is restricting background data for the app, or if Microsoft's MFA servers are experiencing temporary outages.

Will simply reinstalling the Authenticator app fix the login issue?

Reinstalling the app alone often does not resolve MFA setup issues. You usually need to log into your account's security dashboard via a web browser, remove the old device registration, and set up a new connection using a fresh QR code.

How do I access my account if I cannot use the Authenticator app at all?

On the login screen, select 'Sign in another way' or 'I can't use my Microsoft Authenticator app right now'. This allows you to receive a verification code via your pre-configured backup methods, such as an alternative email address or an SMS text message.

Can I use Microsoft Authenticator without an internet connection?

Yes, while push approval prompts require an internet connection, you can open the Authenticator app offline and manually type in the 6-digit rotating passcode that the app continuously generates.