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How to Fix a Rejected Six-Digit Microsoft Authenticator Code
Question details
The user needs to resolve an issue where the Microsoft Authenticator app rejects a six-digit verification code and prompts them to check the security code.
- Product
- Microsoft Authenticator
- Device & OS
- not provided
- Scenario
- Attempting to sign in using multi-factor authentication and entering the generated code.
- Observed behavior
- The system rejects the six-digit verification code and displays an error message asking the user to check the security code.
Verify that your device is connected to a stable internet network and that your system time is set to update automatically, as out-of-sync time is a primary cause for code rejections.
Synchronize Device Time Settings
Correcting the time synchronization often resolves verification code rejection errors without needing further support.
Authentication codes are time-based. If your device's internal clock is even slightly out of sync with the Microsoft servers, the generated codes will be rejected as invalid.
Launch the Microsoft Authenticator app on your mobile device and tap the three-dot menu icon to access Settings.
Scroll down to find the 'Time correction for codes' section and select the 'Sync now' option.
Seek Assistance on the Microsoft Learn Forum
Post your specific issue to the dedicated Microsoft Authenticator forum for specialist support if basic troubleshooting fails.
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Frequently Asked Questions
Why is my 6-digit Authenticator code being rejected?
This most frequently occurs because the time on your device is slightly out of sync with the Microsoft authentication servers. It can also happen if the code has expired right as you entered it, or if there is a temporary glitch in the app.
Can I sign in to my account if the Authenticator app is completely blocked?
Yes, if you previously configured alternative verification methods, such as an alternate email address, a phone number for SMS codes, or saved backup codes, you can select 'Use a different verification option' on the sign-in screen.
Does reinstalling the Microsoft Authenticator app fix the code rejection error?
Reinstalling might fix corrupted app data, but it requires caution. If you do not have cloud backup enabled for your Authenticator accounts or an alternative login method, reinstalling the app could permanently lock you out of your accounts.
