i cannot sign in Azure portal.I am getting MFA issue as Error Code: 500121

Question

Hello Microsoft Autorities

i cannot sign in Azure portal.

I am getting MFA issue as Error Code: 500121;

I am not getting any calls or code. My number somehow getting blacklisted. Please resolve .I am struggling with this issue for around almost 1 month.

Answer 1

@Gokulraj Nagarajan
Thank you for your post!

Error Code: 500121
This typically occurs when authentication failed as part of the multi-factor authentication (MFA) request, it may indicate a configuration or service error. To resolve this issue, can you try resetting (require re-register) MFA for your user.

Related issue - https://github.com/MicrosoftDocs/azure-docs/issues/23238

If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.

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Answer 2

Is possible that you miss-clicked in Microsoft Authenticator app and blocked yourself like my user bellow. I would check there first before making a ton other changes like I did 😁.

Hope this helps.