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Can't sign with the MS authenticator in to Teams app with new Iphone

Nadia Raquillet 0 Reputation points
2025-12-08T08:56:12.55+00:00

I just got the new Iphone 17 and everything works perfectly after the transfer of my previous Iphone. With my mail app I was able to access with the MS authenticator sign in notification and by choosing the correct number displayed. However when I sign in to Teams on my new phone, it is asking me to sign in and the number shows but I do not get the Authenticator notification to validate the number. I also tried the password method but it does not work, but when I use my password to access my hotmail online, i can successfully sign in.

I removed the Teams app and re-installed it but this also does not work.

Any idea what I can do?

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  1. Q&A Assist
    2025-12-08T08:56:23.8166667+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    It sounds like you're experiencing issues with receiving notifications from the Microsoft Authenticator app while trying to sign into Teams on your new iPhone. Here are a few steps you can try to resolve this issue:

    1. Check Notifications Settings: Ensure that notifications for the Microsoft Authenticator app are enabled on your new iPhone. Go to Settings > Notifications > Authenticator and make sure that notifications are allowed.
    2. Enable Phone Sign-In: If you haven't already, consider enabling phone sign-in in the Authenticator app. This can provide a smoother sign-in experience. To do this, open the Microsoft Authenticator app, tap your account, and select Enable phone sign-in.
    3. Recheck MFA Setup: Since you mentioned that you were able to sign in with your mail app, double-check that the multi-factor authentication (MFA) settings are correctly configured for your Teams account. Sometimes, different apps may have slightly different configurations.
    4. Use SMS or Call for MFA: If the Authenticator notifications are still not coming through, you can try using SMS or call-based MFA as a temporary solution. Ensure that your phone number is correctly set up for this method.
    5. Reinstall Authenticator App: If the problem persists, consider uninstalling and reinstalling the Microsoft Authenticator app. This can sometimes resolve underlying issues with the app itself.
    6. Contact IT Support: If none of the above steps work, it may be beneficial to reach out to your IT support team for further assistance, as they may have specific insights into your organization's setup and policies.

    By following these steps, you should be able to troubleshoot the issue with signing into Teams using the Microsoft Authenticator app on your new iPhone.

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  2. EmilyS726 188.2K Reputation points Independent Advisor
    2025-12-08T13:19:17.56+00:00

    Hello

    For your Teams app, I need to know very specifically, what type of account are you trying to sign into:

    1. Personal account
    2. Work/school account
    3. Personal account invited as a guest user in an organization
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