Hi Bernie Wischer,
Thank you for reaching out to the Microsoft Q&A Forum! I understand how frustrating it can be to get stuck in repeated sign-in loops when setting up Microsoft Authenticator on a new device, especially when you need quick access to your accounts. The issue usually occurs when the old device is still registered as your primary verification method, and the system cannot complete the sign-in without an updated method.
Here are the steps that you can try to resolve the issue:
1 - Use an Alternate Method First
- Go to Microsoft my sign-ins in an InPrivate browser window.
- Choose Add Method → Authenticator App or select SMS/Email if available.
2 - If You’re Locked Out
- Use the Advanced Security Options page to add a backup method before removing the old one.
3 - Re-Enroll Authenticator
- Install Microsoft Authenticator on your new phone.
- Scan the QR code provided during setup or enter the code manually.
Always keep at least two verification methods (e.g., Authenticator + SMS) to avoid future lockouts.I look forward to receiving your update. Let me know if you need further assistance, feel free to ask me by clicking "Add Comment" or "Add Answer" if you cannot add comment so your response will be visible. Thanks for your effort.
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