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I’m happy to help look into this with you and guide you in the right direction.
Since your most recent comment was posted in the English, I’ll continue in English to keep things consistent.
From what you’ve described, it does sound like you’re experiencing a loop with multi-factor authentication (MFA), where the sign-in keeps redirecting but doesn’t allow you to complete the verification step.
In situations like this, the most effective solution is to reset your MFA setup so you can register your authentication method again from scratch. As your account is managed by your university, this action needs to be performed by your school’s IT administrator
I’d recommend reaching out to them and kindly asking them to follow the steps in this guide to revoke your existing MFA sessions and require re-registration: Manage authentication methods for Microsoft Entra multifactor authentication - Microsoft Entra ID |…
Once this is done, the next time you try to sign in, you should be prompted to set up the Authenticator app again on your phone. This usually resolves the issue and allows you to receive the verification code properly.
I hope this helps clarify your situation and points you toward the right team to get it resolved more quickly.
Thank you so much for your patience and understanding.
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