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TranQuocDuyFHMCMS-7127 avatar image
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TranQuocDuyFHMCMS-7127 asked MarileeTurscak-MSFT commented

Cannot access portal.azure.com even using phone authenticator

Hi Azure,

Currently, I cannot access portal.azure.com.
I also reset MFA but it does not work.

Today, I tried again.
1/ Remove all MFA methods
2/ Setup use phone message authentication
3/ Access to portal.azure.com
4/ Portal ask code. Open the mobile and get code
5/ Fill the code
6/ Azure portal accept code but then, it redirects and show a dialog: "Approve sign in request"
82309-capture.png




Please help me.

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What happens when you select "sign-in another way"? I see another user also reported this but I was not able to reproduce it in my own tenant.

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Did you ever switch devices?

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I reset MFA and still keep current device.
1/ After I fill the code received from phone message (SMS), the Azure portal redirect me to the page: "Approve sign-in request".
2/ But my mobile phone cannot receive "Approval notification"
3/ So I choose: "Sign-in another way" and choose: "Verification code"
4/ I open Authenticator application and fill the code
5/ Azure portal notify: Wrong code.

P/S: I still access to office.com with MFA normally. May the account have error in specific Azure tenant?


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MarileeTurscak-MSFT avatar image MarileeTurscak-MSFT TranQuocDuyFHMCMS-7127 ·

Can you please verify whether you had removed the account from the Microsoft authenticator app?

Because, if you have a device that is registered with the organization, you might need an extra step to remove the account. On these devices, Authenticator is automatically registered as a device administrator. If you want to completely uninstall the app, you need to first unregister the app in the app settings.

I and another teammate both tried to reproduce the issue, using the steps provided, but we were not able. Authenticator has been working as expected.

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