Azure Portal with MFA - New phone, cannot authenticate

Question

I have lost access to my Azure portal.

MFA was achieved using the authenticator app and account was on an old iPhone. I installed the authenticator app on my replacement handset (Android) but am now unable to get access to the portal.

During the MFA process there is an option: I can't use my Microsoft authenticator app right now

Selecting that option changes the GUI and provides another option: use a verification code from my mobile app

But the outcome is always the same: You didn't enter the expected verification code. Please try again.

How do I get the MFA to allow me to recognise the authenticator app is now on a new phone, and I need to reset?

The Azure poral access is from my Visual Studio subscription, and I have a test tenancy that can no longer be accessed.

Answer 1

In that case, you have to reset your MFA in order to have access again since you only registered one authentication method. Best is to always register two authentication methods such as phonenumber + authenticator app.

If you want to reset your MFA, you must use or contact an admin account within your tenant.

https://learn.microsoft.com/en-us/azure/active-directory/authentication/howto-mfa-userdevicesettings#manage-user-authentication-options