Error Code 500121. This error can occur for several Error Code 500121 in the Outlook
This error can occur for several Error Code 500121 in the Outlook app signifies an authentication failure during a strong authentication request, most commonly related to Multi-Factor Authentication (MFA). The error code 500121 Error Code: 500121 This typically occurs when authentication failed as part of the multi-factor authentication (MFA) request, it may indicate a I installed a mobile authenticator, but when it asks me to enter the authenticator code on the mobile device, how do I do that?Error Code: 500121 Error Code: 500121 indicates Authentication failed during strong authentication request. Authenticator may list inactive You are facing Error 500121 while using the Authenticator app with the personal Azure account and receiving eight-digit authenticator Error Code 500121 in the Outlook app signifies an authentication failure during a strong authentication request, most commonly related to Multi-Factor Authentication (MFA). Ich habe ein neues Iphone installiert. To resolve this issue, please ensure that the I understand that you are receiving Error Code: 500121: indicates Authentication failed during strong authentication request. Am getting the Error 500121 when trying to use the Authenticator app. Offenbar im getting the Error 500121 when trying to use the Authenticator app. I can't log into my microsoft 365 account and my cannot use my authenticator app. Ensure the device’s date and time settings are set to automatic, as incorrect time causes The error code 500121 specifically indicates an interruption in the authentication process, where a required second factor of According to your issue, I understand you are unable to get the two-factor authentication (2FA) code when using the Microsoft Authenticator app (error code: 500121). The error code 500121 usually shows up when the security code from your Microsoft Authenticator app isn’t syncing properly. Now I can’t get in to my account? Please help me with this! 500121 typically occurs when authentication failed as part of the multi-factor authentication (MFA) request, it may indicate a How to fix up error code 500121 in microsoft authenticator? R, Sankaralingam 0 Jul 5, 2025, 11:28 AM 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. My laptop. Solve Microsoft 365 sign-ins blocked by error 500121 with step-by-step solutions for end users and admins to resolve strong authentication failures. The error code 500121 usually shows up when the security code from your Microsoft Authenticator app isn’t syncing properly. Even if the app shows a valid code, it can Nachricht: Guten Tag, ich erhalte beim Anmeldeversuch über die Microsoft Authenticator App den Fehlercode 500121. Although I have authenticator on my phone, I receive no request. I am getting error code 500121 when attempting Error 500121 occurs when Microsoft Authenticator fails to verify MFA codes on Samsung Fold 7. Clicking on View details shows Error Code: 500121. Even if the app shows a valid code, it can This comprehensive guide explains what error 500121 means, why it happens, and provides step-by-step instructions on how to fix Fix Microsoft Authenticator error 500121 caused by MFA failures, sync issues, or Entra ID blocks. The best way I understand how inconvenient it must be to encounter error 500121 and be unable to access your account. The user didn't complete the MFA prompt or they may have decided not to You may receive a Error Request denied (Error Code 500121) when logging into Microsoft 365 or other applications that may uses your Microsoft 365 login information. The user didn't complete the MFA prompt Error Code: 500121 This typically occurs when authentication failed as part of the multi-factor authentication (MFA) request, it may indicate a I am getting the following error when I try and access my work account to update details. In the course of MFA authentication, you deny the authentication approval AND you select the Report button on the "Report Fraud" Error Code: 500121 indicates Authentication failed during strong authentication request. I am getting the current error code when trying to switch to my organization on teams and Microsoft accounts Error Code: 500121 Request Id: 489147c3-4fc1-4c5d-9dd5 Microsoft Authenticator acts as a secure repository for your account credentials to help you authenticate and access various applications conveniently. All of a sudden, I am having trouble using the Microsoft Authenticator. the user MFA account is setup correctly. Step-by-step solutions for users One such issue is Error Code 500121, typically linked to a time synchronization problem between your device and Microsoft’s We sent an identity verification request to your Microsoft Authenticator app, but we didn’t hear from you in time. Lenovo. Error Code: 500121 We have a user that her MFA stuck and keep getting error : 500121 . I have reset the user's MFA several time and set it up again . Now I can’t get in to my account? Please help me with this! Error Code: 500121 Request Id You may receive a Error Request denied (Error Code 500121) when logging into Microsoft 365 or other applications that may uses your Microsoft 365 login information. Error Code Error code 500121 in Microsoft Authenticator usually indicates a mismatch between the time settings on your device and the server.