Fix Microsoft Authenticator Loop: Asking for App Code
Question details
The user is trapped in an authentication loop where Microsoft Authenticator requests a verification code from the very app being signed into, with no visible alternative verification options available.
- Product
- Microsoft Authenticator
- Device & OS
- not provided
- Scenario
- Setting up or signing into the Microsoft Authenticator app, typically after getting a new phone or reinstalling the application.
- Observed behavior
- The sign-in process creates an infinite loop by asking the user to approve the login or enter a code using the Authenticator app they are currently trying to configure.
Check if you have any secondary devices (like a personal laptop or tablet) where your Microsoft account is still signed in, as you may be able to adjust your security settings directly from an active session.
Select an Alternative Verification Method
Use this method if you previously added a phone number, alternate email, or FIDO2 security key to your Microsoft account.
If your account has secondary authentication methods configured, you can bypass the Authenticator app entirely during the sign-in process.
On the sign-in screen where it asks for the Authenticator code, click the link that says 'Sign in another way' or 'I can't use my Microsoft Authenticator app right now'.
Select an alternative option from the list, such as receiving a Text message (SMS) to your registered phone number or a code to your backup email address.
Retrieve the code from your SMS or email, enter it into the sign-in prompt, and proceed to access your account.
Contact Your IT Administrator (Work or School Accounts)
Use this solution if you are a student or employee and do not have alternative verification methods configured.
Contact Microsoft Support (Sole Administrators or Personal Accounts)
Use this solution if you are the only global administrator for your business tenant or if you are locked out of a personal account with no other options.
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Frequently Asked Questions
Why does Microsoft Authenticator ask for a code from itself?
This sign-in loop typically occurs when the Authenticator app is set as your default verification method, but you recently reinstalled the app or switched to a new phone without setting up a fallback method (like SMS or email) beforehand. The system still thinks the app is active and sends the prompt there.
Can I bypass the Authenticator app if I know my account password?
No. If Multi-Factor Authentication (MFA) is strictly enforced on your account, a password alone is insufficient. You must use an approved alternative verification method or have your MFA requirements completely reset by an IT administrator.
How long does Microsoft Support take to reset a locked admin account?
Because it involves bypassing strict security protocols and verifying business ownership, the Microsoft Data Protection team may take several days to a week to verify your identity and remove the MFA block from a sole global administrator account.
