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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.
Managing applications through Configuration Manager in Intune
A cloud-based identity and access management service for securing user authentication and resource access
A family of Microsoft relational database management systems designed for ease of use.
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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.
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.
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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Error Code: 500121
Request Id: 29a84109-717d-40bd-9bd3-7b6d9b306400
Correlation Id: 7a6dbfca-b111-424e-a6d1-01f4807a7eda
Timestamp: 2026-02-15T12:58:59Z