Error code 500121

Question

I get error 500121 every time I log in to Team and now I can't log in to view my classes. I can’t even log into Azure to change the MFA setting. Please help me

Answer 1

vậy tôi làm cách nào để đăng nhập lại được vậy a

Answer 2

Ad có thể giúp tôi được không ạ

Tôi gặp lỗi 500121 mỗi lần đăng nhập vào Team và bây giờ tôi không thể đăng nhập để xem lớp học của mình. Tôi thậm chí không thể đăng nhập vào Azure để thay đổi cài đặt MFA. Vui lòng giúp tôi.

Answer 3

Dear Neko T,

Good day! Thank you for posting to Microsoft Community. We are happy to assist you. 

Based on your description, you're experiencing issues with logging in to Microsoft Teams and Azure. Error code 500121 usually indicates a problem with the authentication process. The best way is to reset your MFA option, so that you can re-configure it when you login the next time.

Please refer to the inofrmation below:

• If you are using Microsoft business/education account which is assigned by your organization  
    
  1.) If you are a user in your tenant (or you are an admin but are not the only one), please contact your administrator to follow the steps in Manage authentication methods for Azure AD Multi-Factor Authentication - Microsoft Sign In | Microsoft Learn to reset your MFA option. After reseting, you would be required to set the MFA again when you login to O365 Portal.  
    
  2.) If you're the only admin in your organization, since our forum is a public platform, we are not allowed or suitable to collect customers' account information. In this situation, please Find Microsoft 365 support phone numbers for business by country or region - Microsoft 365 admin | Microsoft Learn to contact our support. Support will help reset MFA for you. They will keep your account safe and sucure.
• If you are using Microsoft personal accountwhich is ended with outlook.com/hotmail.com/live.com/msn.com.  
    
  Please comprehend that our group supports on M365 business account issues, for personal account, there is a specific group supports on it. So, if the issue persists and the account is a personal one, would you please reply to let me know, I will move this thread to the correct category ASAP for more professional support.

If there is any update or I misunderstand you, please feel free to let me know. I will continue to assist you. Your understanding and co-operation are highly appreciated.

Thanks for your precious time. Have a nice day！ Sincerely,Sherry | Microsoft Community Moderator