How to Resolve Azure AD Error Code 500121 Affecting Sign-ins?

Question

How to Resolve Azure AD Error Code 500121 Affecting Sign-ins?

Moazzem Hossain 0

I’m facing an Azure AD authentication issue (Error Code: 500121) that has impacted user sign-ins since November 19, 2024. Details include:

Tenant ID: 319c9d59-c5f1-48d3-af49-4f959b5e02c1

Object ID: d1f9c470-cb72-409c-9ddd-e47203e63da6

User Account: ******@loyaltradebd.com

Request ID: 65a0a6cf-aa79-4096-800e-bbe99c1b7800

Correlation ID: e2ff1368-41aa-4edb-8716-a3ff3deabb2b

I’ve sought help from Microsoft 365, Azure, and other support channels, but the issue remains unresolved. As a new user, I need guidance on the next steps or escalation. Any support would be greatly appreciated.

Bandela Siri Chandana 3,055 Reputation points Microsoft External Staff Moderator

2024-12-03T13:11:14.5233333+00:00

Hi @Moazzem Hossain

Thank you for posting your query on Microsoft Q&A.

I understand that you are receiving Error Code: 500121: indicates Authentication failed during strong authentication request. The best way is to reset your MFA option, so that you can re-configure it when you login the next time.

Re-Register your MFA:

Can you please provide error screenshot for further detail discussion.

Hope this helps. Do let us know if you have any further queries.

Thanks,

B. Siri Chandana.
Bandela Siri Chandana 3,055 Reputation points Microsoft External Staff Moderator

2024-12-04T09:11:53.9233333+00:00

Hi @Moazzem Hossain
Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.
Bandela Siri Chandana 3,055 Reputation points Microsoft External Staff Moderator

2024-12-05T09:31:38.6433333+00:00

Hi @Moazzem Hossain
Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.

Your answer

Bandela Siri Chandana 3,055 Reputation points Microsoft External Staff Moderator

2024-12-03T13:11:14.5233333+00:00

Hi @Moazzem Hossain

Thank you for posting your query on Microsoft Q&A.

I understand that you are receiving Error Code: 500121: indicates Authentication failed during strong authentication request. The best way is to reset your MFA option, so that you can re-configure it when you login the next time.

Re-Register your MFA:

Can you please provide error screenshot for further detail discussion.

Hope this helps. Do let us know if you have any further queries.

Thanks,

B. Siri Chandana.
Bandela Siri Chandana 3,055 Reputation points Microsoft External Staff Moderator

2024-12-04T09:11:53.9233333+00:00

Hi @Moazzem Hossain
Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.
Bandela Siri Chandana 3,055 Reputation points Microsoft External Staff Moderator

2024-12-05T09:31:38.6433333+00:00

Hi @Moazzem Hossain
Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.

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How to Resolve Azure AD Error Code 500121 Affecting Sign-ins?

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