Microsoft Authenticator not working with new iphone/ipad devices

If you're having trouble with Microsoft Authenticator after upgrading to a new iPhone and iPad, you may need to ensure that your old devices are properly removed from your account. Since you mentioned that you don't see your old devices listed in the Authenticator app, it could be that they are still registered for multifactor authentication (MFA) in your account settings.

Here are some steps you can take to resolve the issue:

1. Check Device Registration: You may have reached the limit of five devices registered for MFA. If this is the case, you will need to remove one of the existing devices from your account. This can typically be done through your organization's IT support or security settings.
2. Set Up Microsoft Authenticator: Make sure that you have set up the Microsoft Authenticator app on your new devices correctly. You may need to re-register your new devices for MFA. Follow the prompts in the app to add your work account.
3. Contact IT Support: If you're still unable to resolve the issue, it may be best to contact your IT support team for assistance. They can help you manage your MFA settings and ensure that your new devices are properly configured.

Remember, if you have app-based MFA set up, you will need to use your old device to complete the setup on your new devices until the transition is fully complete.

References:

• Can't set up MFA because five devices are already registered to use an authenticator app
• Migrate to a new iPhone for work