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I am having trouble signing in to my school account on Microsoft Authenticator. Each time I log in, the Approve sign-in request pops up for a second and moves to request denied. Then if I attempt to get a code a different way since I can't use an app right now, and I select approve a request on my Microsoft Authenticator app, Use a verification code, or send a text, it states, Sorry, we're having trouble verifying your account. Please try again. When I click on more details, it says it is Error Code 500121 and I have attempted many different times to log in and gotten the same messages. I even attempted to delete and reinstall the app, but it didn't work either. I would appreciate support in how resolve this issue and get back into my account.
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Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Please try reaching out to your school IT administrators (or group). Have them reset your MFA contact methods:
Manage user authentication options