If you received an "Authentication did not complete" message it could be for one of the following reasons:
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App is locked: Make sure Microsoft Authenticator is unlocked on your device. Sometimes, the entry box might not appear if the app is locked.
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Silent Notifications: If notifications are silent or disabled, you might not receive the necessary prompts to complete authentication. Make sure notifications are enabled for the app. Check your text messages for authentication codes which may have arrived silently.
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Outdated app version: Using an outdated version of the Microsoft Authenticator app can cause issues. Make sure you have the latest version installed.
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Network issues: If your device is not connected to the internet, or if there are network disruptions, the authentication process might fail. Switching between Wi-Fi and mobile data can sometimes resolve this.
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Device settings: Ensure that your device’s date and time settings are correct.
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Forgot password: If you can't sign in because you forgot your credentials, you can try to reset your password.Reset your password
Need more help?
Troubleshoot problems with Microsoft Authenticator
Help with a work or school account
Alternatively, contact your IT admin.