A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
Follow these steps in order, testing sign-in again after each step:
- Make sure Microsoft Authenticator is unlocked
- Open Authenticator on the iPhone and ensure it is not showing as locked.
- If it is locked and will not unlock, uninstall the Authenticator app, reinstall it, and then sign in and re-add the account.
- Check notifications on the iPhone
- In iOS Settings → Notifications → Authenticator, ensure notifications are allowed and not set to Deliver Quietly.
- In the Authenticator app, go to Settings → Notification Settings and make sure Show notifications is turned on.
- Update Authenticator and iOS
- Ensure the iPhone has the latest version of Microsoft Authenticator installed. Microsoft does not support app versions more than 12 months old.
- Update iOS to the latest version available.
- Check network connectivity
- On the iPhone, switch between Wi‑Fi and mobile data to rule out a network issue.
- Make sure Airplane mode is off and any VPN is temporarily disabled.
- Turn off battery optimization for Authenticator
- In the Authenticator app, go to Settings and select Turn off battery optimization (or equivalent power-saving settings) so the app can stay connected while approving the sign-in.
- Verify date and time settings
- On the iPhone, ensure Date & Time are set correctly (preferably “Set Automatically”). Incorrect time can cause the “connecting” state to never complete.
- Try an alternate verification method or password reset if needed
- On the PC sign-in screen, choose “Sign in another way” (if available) and use SMS, email, or another method to complete sign-in.
- If credentials are not working, use the password reset flow: Reset your password.
If the problem persists after these steps and no prompt ever completes, contact the organization’s IT admin (for work/school accounts) so they can review sign-in logs and, if necessary, reset MFA methods and require re-registration.
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