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ResolvedAWS Health DashboardAsia Pacific (Sydney)

[RESOLVED] Increased sign-in errors

Started

Aug 26, 2025, 8:52 PM UTC

Resolved

Aug 26, 2025, 9:44 PM UTC

Duration

52m

Services impacted

1

Source: AWS Health DashboardLast verified 24 minutes agoVerify on the official source

Event reference: arn:aws:health:ap-southeast-2::event/IAMIDENTITYCENTER/AWS_IAMIDENTITYCENTER_OPERATIONAL_ISSUE/AWS_IAMIDENTITYCENTER_OPERATIONAL_ISSUE_3016A_E50452032EB

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Impact

Between 11:23 AM and 2:15 PM PDT, we experienced increased errors when attempting to sign-in to the AWS Management Console using IAM Identity Center in the AP-SOUTHEAST-2 Region. Engineers were automatically engaged at 11:28 AM and immediately began investigating the root cause. At 12:09 PM, we identified the root cause as a recent change to an underlying subsystem in the sign-in path and immediately began rolling this change back. By 2:15 PM, we had mitigated the underlying root cause and continued to monitor for full recovery. We recommend customers hard refresh the sign-in page before retrying authentication attempts if they continue to experience an error. We do not expect this issue to reoccur. The issue has been resolved and the service is operating normally.

Affected services (1)

Affected regions

Asia Pacific (Sydney)ap-southeast-2

Timeline

Verbatim updates as published by AWS, newest first (times in UTC).

  1. Resolved

    Between 11:23 AM and 2:15 PM PDT, we experienced increased errors when attempting to sign-in to the AWS Management Console using IAM Identity Center in the AP-SOUTHEAST-2 Region. Engineers were automatically engaged at 11:28 AM and immediately began investigating the root cause. At 12:09 PM, we identified the root cause as a recent change to an underlying subsystem in the sign-in path and immediately began rolling this change back. By 2:15 PM, we had mitigated the underlying root cause and continued to monitor for full recovery. We recommend customers hard refresh the sign-in page before retrying authentication attempts if they continue to experience an error. We do not expect this issue to reoccur. The issue has been resolved and the service is operating normally.

  2. Monitoring

    We have started to see initial signs of recovery and continue to work towards full resolution. We recommend customers hard refresh the sign-in page before retrying authentication attempts.

  3. Monitoring

    We can confirm errors when attempting to sign-in to the AWS Management Console using IAM Identity Center. We have identified the root cause as a recent change to an underlying subsystem in the sign-in path. We have rolled this change back and continue to work on fully mitigating issue. We will provide an update by 2:45 PM PDT.

  4. Investigating

    We are investigating increased sign-in errors with SSO in the AP-SOUTHEAST-2 Region.

Resolution

Between 11:23 AM and 2:15 PM PDT, we experienced increased errors when attempting to sign-in to the AWS Management Console using IAM Identity Center in the AP-SOUTHEAST-2 Region. Engineers were automatically engaged at 11:28 AM and immediately began investigating the root cause. At 12:09 PM, we identified the root cause as a recent change to an underlying subsystem in the sign-in path and immediately began rolling this change back. By 2:15 PM, we had mitigated the underlying root cause and continued to monitor for full recovery. We recommend customers hard refresh the sign-in page before retrying authentication attempts if they continue to experience an error. We do not expect this issue to reoccur. The issue has been resolved and the service is operating normally.

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