ClassLink incident

ClassLink Sign In Issues Due to Amazon AWS

Critical Resolved View vendor source →

ClassLink experienced a critical incident on October 20, 2025 affecting Active Directory Integration and Google Integration and 1 more component, lasting 12h 50m. The incident has been resolved; the full update timeline is below.

Started
Oct 20, 2025, 11:14 AM UTC
Resolved
Oct 21, 2025, 12:04 AM UTC
Duration
12h 50m
Detected by Pingoru
Oct 20, 2025, 11:14 AM UTC

Affected components

Active Directory IntegrationGoogle IntegrationAzure Integration

Update timeline

  1. investigating Oct 20, 2025, 11:14 AM UTC

    Amazon AWS, a service that integrates with ClassLink, is currently experiencing an issue affecting users in the US-East region. This outage may impact users’ ability to log in to ClassLink. Our team is actively monitoring the situation and will share updates as they become available.

  2. identified Oct 20, 2025, 11:38 AM UTC

    Amazon AWS has identified the root cause of the issue. Services, such as signing into ClassLink, may slowly start functioning as expected again. ClassLink is currently monitoring the situation.

  3. monitoring Oct 20, 2025, 12:36 PM UTC

    We are aware of an ongoing AWS service disruption that is impacting signing in to ClassLink. AWS has reported substantial improvement in one of the affected Availability Zones and is working to apply the fix across remaining zones. We are closely monitoring the situation and will continue to provide updates as AWS implements full recovery.

  4. monitoring Oct 20, 2025, 03:28 PM UTC

    We continue to experience issues scaling our services due to an ongoing AWS outage affecting multiple systems. According to AWS, the problem originated within the EC2 internal network. Our team remains actively engaged with AWS as they work to identify and implement mitigations. We will continue to provide updates as more information becomes available. At this time, we do not have an ETA of when services will be restored. Thank you for your continued patience as we monitor and respond to this issue.

  5. monitoring Oct 20, 2025, 05:50 PM UTC

    AWS continues to work on mitigating network issues that are affecting multiple services, including those used by ClassLink. They are validating a fix for EC2 instance launch failures and plan to deploy it to the first Availability Zone once it has been confirmed safe to do so. While progress is being made, we are still unable to fully scale our services at this time. We remain in close contact with AWS as they implement recovery steps and will provide another update once more information becomes available. Thank you for your patience as we continue to monitor this situation closely.

  6. monitoring Oct 20, 2025, 07:46 PM UTC

    We are seeing significant recovery across most ClassLink services following the AWS outage. However, some SAML 1.0 applications and console are still experiencing issues. Our team is actively investigating and working toward full restoration. We will continue to monitor the situation closely and provide additional updates as more information becomes available. Thank you for your continued patience.

  7. monitoring Oct 20, 2025, 10:01 PM UTC

    All ClassLink services have been restored. We will continue to monitor over the next hour to ensure all services remain fully operational.

  8. resolved Oct 21, 2025, 12:04 AM UTC

    All ClassLink services have been restored and are fully operational.