MFA - "There's a temporary problem with the service. Please try again later"

The error message indicates a problem with the multifactor authentication (MFA) service during setup, not with basic sign-in. From the available information, the supported actions are:

1. Wait and retry later

• The message explicitly indicates a temporary service problem. MFA and two-step verification services can block or throttle repeated attempts or show errors when there is unusual activity or a backend issue.
• If there have been many attempts to turn MFA on or reconfigure it, wait before trying again. Microsoft Entra multifactor authentication can temporarily prevent additional attempts when it detects repeated sign-in or verification activity.

2. Try a different MFA method or path

• If multiple verification methods are already configured (phone, SMS, app, etc.), use Other verification options where available and confirm that each method works correctly.
• If one method is failing during setup, switch to another method (for example, SMS instead of app, or app instead of phone call) and see whether the setup completes.

3. Verify existing security verification data

• Confirm that phone numbers and country/region codes are correct in the security verification settings, as incorrect data can cause repeated failures and error messages during MFA flows.

4. Avoid repeated failed attempts

• Repeated attempts can be interpreted as unusual activity. If there have been many failed or repeated MFA configuration attempts, pause and try again later or use a different MFA method. If sign-in attempts start failing as well, an admin should review Microsoft Entra sign-in logs for potential blocking or misconfiguration.

5. If the account is work or school (Microsoft Entra ID)

• Contact the organization’s IT help desk or Microsoft Entra administrator. They can:
  • Check sign-in logs and MFA status.
  • Reset MFA methods or require re-registration so MFA can be configured again.
  • Confirm whether there is any tenant-level policy or configuration affecting MFA setup.

If the problem persists across devices and methods after waiting and retrying, and support has already reproduced the issue, further resolution will typically require Microsoft support or, for work/school accounts, the tenant administrator to investigate and possibly reset MFA or adjust policies.

References:

• Common problems with two-step verification for a work or school account
• Use a screen reader to set up and troubleshoot multifactor authentication
• "We didn't receive a response" error message when you try to sign in by using Azure Multi-Factor Authentication
• "Account verification system is having trouble" error message when you try to sign in by using a work or school account
• "Sorry! We can't process your request" error when you try to set up security verification settings for Microsoft Entra multifactor authentication