Troubleshooting / symptôme

Microsoft 365 MFA buckle

The user is constantly re-demanded to authenticate or validate MFA.

⌚ About 2 min read
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Real-world problem · V2

Quick troubleshooting view

What you are seeing

The user is constantly re-demanded to authenticate or validate MFA.

First checks
  1. Test Private Browser
  2. Read Sign-in-news
  3. Check MFA methods
Recommended actions
  1. Correcting policy CA
  2. Revoking sessions if necessary
  3. Reregister MFA method
Start Symptom → Cause →
Microsoft 365.Intermediate.

The user is constantly re-demanded to authenticate or validate MFA.

Important: relevez toujours le message d’erreur exact et l’heure du problème avant de modifier la configuration. Les actions proposées doivent être adaptées à votre environnement.

Causes probables

  • Conditional Access
  • tokens/cookies
  • MFA method failing

Diagnostic étape par étape

  1. 1

    Test Private Browser

    Clear local cache.

  2. 2

    Read Sign-in-news

    Identify applied policy.

  3. 3

    Check MFA methods

    Control record.

Solutions possibles

  • Correcting policy CA
  • Revoking sessions if necessary
  • Reregister MFA method
Quand escalader ?

Climb before changing a global Conditional Access rule.

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