Azure AD Sign-in Error 50017

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The Who, Where and When information is very important for an administrator to have complete knowledge of all activities that occur on his Active Directory. This helps him identify any desired / undesired activity happening. ADAudit Plus assists an administrator with this information in the form of reports. In real-time, ensure critical resources in the network like the Domain Controllers are audited, monitored and reported with the entire information on AD objects - Users, Groups, GPO, Computer, OU, DNS, AD Schema and Configuration changes with 200+ detailed event specific GUI reports and email alerts.

Account Management » Azure AD Sign-in Error 50017

Error 50017 -Certification validation failed.

About Azure Activity sign-in activity reports:

Azure Active Directory's reporting tool generates 'Sign-in activity' reports that give you insights on who has performed the tasks that are enlisted in the Audit logs.

  • All Sign-in activity reports can be found under the Activity section of Azure Active Directory.
  • The default list view of Audit logs can be customized by adding additional fields.
  • The reports can also be filtered to let you view only the activities that are relevant. 
  • Here is an example of how a sign-in activity report looks like:

    azure-ad-sign-in-error-code-50017

Error description:

Certification validation failed for the following reasons:

  • Cannot find issuing certificate in trusted certificates list.
  • Unable to find expected CrlSegment.
  • Delta CRL distribution point is configured without a corresponding

CRL distribution point.

  • Unable to retrieve valid CRL segments due to timeout issue.
  • Unable to download CRL.h

Contact the tenant admin to resolve this error.

Auditing Azure AD environments with ADAudit Plus:

ADAudit Plus offers change monitoring for your Azure AD environment with the following features:

  • Correlated view across hybrid environments
  • Real-time alerts
  • Schedulable reports
  • Autonomous change remediation
  • Comprehensive search
  • Out-of-the-box compliance reports

Explore Active Directory auditing and reporting with ADAudit Plus.

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