Outage in Amazon AI

Increased Error Rates and Latencies - N. Virginia

Minor
October 20, 2025 - Started about 4 hours ago

Incident Report

We are investigating increased error rates and latencies for multiple AWS services in the US-EAST-1 Region. We will provide another update in the next 30-45 minutes.
Components affected
Amazon AI Amazon Interactive Video Service Amazon AI Amazon Interactive Video Service (N. Virginia) Amazon AI AWS Database Migration Service Amazon AI AWS Database Migration Service (N. Virginia) Amazon AI AWS Elemental Amazon AI AWS Elemental (N. Virginia) Amazon AI Amazon Elastic Container Registry Amazon AI Amazon Elastic Container Registry (N. Virginia) Amazon AI Amazon FSx Amazon AI Amazon FSx (N. Virginia) Amazon AI Multiple services Amazon AI Multiple services (N. Virginia) Amazon AI Amazon CloudFront Amazon AI Amazon CloudWatch Amazon AI Amazon CloudWatch (N. Virginia) Amazon AI AWS Global Accelerator Amazon AI Amazon DynamoDB Amazon AI Amazon DynamoDB (N. Virginia) Amazon AI Amazon Elastic Compute Cloud Amazon AI Amazon Elastic Compute Cloud (N. Virginia) Amazon AI Amazon Elastic Kubernetes Service Amazon AI Amazon Elastic Kubernetes Service (N. Virginia) Amazon AI Amazon VPC Lattice Amazon AI Amazon VPC Lattice (N. Virginia) Amazon AI AWS Config Amazon AI AWS Config (N. Virginia) Amazon AI AWS IAM Identity Center Amazon AI AWS IAM Identity Center (N. Virginia) Amazon AI AWS Identity and Access Management Amazon AI AWS Private Certificate Authority Amazon AI AWS Private Certificate Authority (N. Virginia) Amazon AI AWS Secrets Manager Amazon AI AWS Secrets Manager (N. Virginia) Amazon AI AWS Systems Manager Amazon AI AWS Systems Manager (N. Virginia) Amazon AI AWS VPCE PrivateLink Amazon AI AWS VPCE PrivateLink (N. Virginia) Amazon AI Amazon Kinesis Data Streams Amazon AI Amazon Kinesis Data Streams (N. Virginia) Amazon AI AWS Support Center Amazon AI Amazon Kendra Amazon AI Amazon Kendra (N. Virginia) Amazon AI Amazon MQ Amazon AI Amazon MQ (N. Virginia) Amazon AI Amazon Simple Queue Service Amazon AI Amazon Simple Queue Service (N. Virginia) Amazon AI AWS Batch Amazon AI AWS Batch (N. Virginia) Amazon AI Amazon Connect Amazon AI Amazon Connect (N. Virginia) Amazon AI Amazon Managed Streaming for Apache Kafka Amazon AI Amazon Managed Streaming for Apache Kafka (N. Virginia) Amazon AI AWS Organizations Amazon AI Amazon Elastic Load Balancing Amazon AI Amazon Elastic Load Balancing (N. Virginia) Amazon AI AWS IoT Core Amazon AI AWS IoT Core (N. Virginia) Amazon AI AWS NAT Gateway Amazon AI AWS NAT Gateway (N. Virginia) Amazon AI Amazon AppFlow Amazon AI Amazon AppFlow (N. Virginia) Amazon AI Amazon AppStream 2.0 Amazon AI Amazon AppStream 2.0 (N. Virginia) Amazon AI Amazon DocumentDB Amazon AI Amazon DocumentDB (N. Virginia) Amazon AI Amazon Kinesis Video Streams Amazon AI Amazon Kinesis Video Streams (N. Virginia) Amazon AI Amazon Location Service Amazon AI Amazon Location Service (N. Virginia) Amazon AI Amazon OpenSearch Service Amazon AI Amazon OpenSearch Service (N. Virginia) Amazon AI Amazon Relational Database Service Amazon AI Amazon Relational Database Service (N. Virginia) Amazon AI Amazon Transcribe Amazon AI Amazon Transcribe (N. Virginia) Amazon AI Amazon WorkSpaces Amazon AI Amazon WorkSpaces (N. Virginia) Amazon AI AWS Application Migration Service Amazon AI AWS Application Migration Service (N. Virginia) Amazon AI AWS B2B Data Interchange Amazon AI AWS B2B Data Interchange (N. Virginia) Amazon AI AWS CloudTrail Amazon AI AWS CloudTrail (N. Virginia) Amazon AI AWS DataSync Amazon AI AWS DataSync (N. Virginia) Amazon AI AWS Glue Amazon AI AWS Glue (N. Virginia) Amazon AI AWS Storage Gateway Amazon AI Amazon API Gateway Amazon AI Amazon API Gateway (N. Virginia) Amazon AI Amazon Polly Amazon AI Amazon Polly (N. Virginia) Amazon AI Amazon SageMaker Amazon AI Amazon SageMaker (N. Virginia) Amazon AI AWS Lambda Amazon AI AWS Lambda (N. Virginia) Amazon AI AWS Network Firewall Amazon AI AWS Network Firewall (N. Virginia) Amazon AI AWS Storage Gateway (N. Virginia) Amazon AI AWS Transfer Family Amazon AI AWS Transfer Family (N. Virginia) Amazon AI Amazon Elastic Container Service Amazon AI Amazon Elastic Container Service (N. Virginia) Amazon AI Amazon Athena Amazon AI Amazon Athena (N. Virginia) Amazon AI Amazon WorkMail Amazon AI Amazon WorkMail (N. Virginia) Amazon AI Amazon GuardDuty Amazon AI Amazon GuardDuty (N. Virginia) Amazon AI AWS Systems Manager for SAP Amazon AI AWS Systems Manager for SAP (N. Virginia) Amazon AI Amazon Pinpoint Amazon AI Amazon Pinpoint (N. Virginia) Amazon AI Amazon Redshift Amazon AI Amazon Redshift (N. Virginia) Amazon AI Amazon Security Lake Amazon AI Amazon Security Lake (N. Virginia) Amazon AI Amazon Simple Email Service Amazon AI Amazon Simple Email Service (N. Virginia) Amazon AI AWS Directory Service Amazon AI AWS Directory Service (N. Virginia) Amazon AI Amazon Managed Workflows for Apache Airflow Amazon AI Amazon Managed Workflows for Apache Airflow (N. Virginia) Amazon AI Amazon Neptune Amazon AI Amazon Neptune (N. Virginia) Amazon AI Amazon ElastiCache Amazon AI Amazon ElastiCache (N. Virginia) Amazon AI Amazon Cognito Amazon AI Amazon Cognito (N. Virginia) Amazon AI AWS Site-to-Site VPN Amazon AI AWS Site-to-Site VPN (N. Virginia) Amazon AI AWS Verified Access Amazon AI AWS Verified Access (N. Virginia) Amazon AI Amazon VPC IP Address Manager Amazon AI Amazon VPC IP Address Manager (N. Virginia) Amazon AI AWS HealthLake Amazon AI AWS HealthLake (N. Virginia) Amazon AI AWS Transit Gateway Amazon AI AWS Transit Gateway (N. Virginia) Amazon AI Amazon Chime Amazon AI AWS CloudFormation Amazon AI AWS CloudFormation (N. Virginia) Amazon AI AWS Payment Cryptography Amazon AI AWS Payment Cryptography (N. Virginia) Amazon AI AWS IoT Analytics Amazon AI AWS IoT Analytics (N. Virginia) Amazon AI AWS IoT Events Amazon AI AWS IoT Events (N. Virginia) Amazon AI AWS IoT FleetWise Amazon AI AWS IoT FleetWise (N. Virginia) Amazon AI AWS IoT SiteWise Amazon AI AWS IoT SiteWise (N. Virginia) Amazon AI Amazon EventBridge Amazon AI Amazon EventBridge (N. Virginia) Amazon AI Amazon EventBridge Scheduler Amazon AI Amazon EventBridge Scheduler (N. Virginia) Amazon AI Amazon Bedrock Amazon AI Amazon Bedrock (N. Virginia) Amazon AI Amazon Managed Service for Prometheus Amazon AI Amazon Managed Service for Prometheus (N. Virginia) Amazon AI Amazon Simple Notification Service Amazon AI Amazon Simple Notification Service (N. Virginia) Amazon AI AWS Elastic Beanstalk Amazon AI AWS Elastic Beanstalk (N. Virginia) Amazon AI Amazon Simple Storage Service Amazon AI Amazon Simple Storage Service (N. Virginia) Amazon AI AWS Firewall Manager Amazon AI AWS Firewall Manager (N. Virginia) Amazon AI Amazon Elastic MapReduce Amazon AI Amazon Elastic MapReduce (N. Virginia) Amazon AI Amazon EMR Serverless Amazon AI Amazon EMR Serverless (N. Virginia) Amazon AI AWS Step Functions Amazon AI AWS Step Functions (N. Virginia) Amazon AI AWS Outposts Amazon AI AWS Outposts (N. Virginia) Amazon AI AWS HealthImaging Amazon AI AWS HealthImaging (N. Virginia) Amazon AI AWS HealthOmics Amazon AI AWS HealthOmics (N. Virginia)
Latest Updates ( sorted recent to last )
UPDATE about 1 hour ago - at 10/20/2025 12:48PM

We are making progress on resolving the issue with new EC2 instance launches in the US-EAST-1 Region and are now able to successfully launch new instances in some Availability Zones. We are applying similar mitigations to the remaining impacted Availability Zones to restore new instance launches. As we continue to make progress, customers will see an increasing number of successful new EC2 launches. We continue to recommend that customers launch new EC2 Instance launches that are not targeted to a specific Availability Zone (AZ) so that EC2 has flexibility in selecting the appropriate AZ.

We also wanted to share that we are continuing to successfully process the backlog of events for both EventBridge and Cloudtrail. New events published to these services are being delivered normally and are not experiencing elevated delivery latencies.

We will provide an update by 6:30 AM PDT or sooner if we have additional information to share.

UPDATE about 2 hours ago - at 10/20/2025 12:10PM

We confirm that we have now recovered processing of SQS queues via Lambda Event Source Mappings. We are now working through processing the backlog of SQS messages in Lambda queues.

UPDATE about 2 hours ago - at 10/20/2025 11:48AM

We continue to work to fully restore new EC2 launches in US-EAST-1. We recommend EC2 Instance launches that are not targeted to a specific Availability Zone (AZ) so that EC2 has flexibility in selecting the appropriate AZ. The impairment in new EC2 launches also affects services such as RDS, ECS, and Glue. We also recommend that Auto Scaling Groups are configured to use multiple AZs so that Auto Scaling can manage EC2 instance launches automatically.

We are pursuing further mitigation steps to recover Lambda’s polling delays for Event Source Mappings for SQS. AWS features that depend on Lambda’s SQS polling capabilities such as Organization policy updates are also experiencing elevated processing times. We will provide an update by 5:30 AM PDT.

UPDATE about 3 hours ago - at 10/20/2025 11:08AM

We are continuing to work towards full recovery for EC2 launch errors, which may manifest as an Insufficient Capacity Error. Additionally, we continue to work toward mitigation for elevated polling delays for Lambda, specifically for Lambda Event Source Mappings for SQS. We will provide an update by 5:00 AM PDT.

UPDATE about 3 hours ago - at 10/20/2025 10:35AM

The underlying DNS issue has been fully mitigated, and most AWS Service operations are succeeding normally now. Some requests may be throttled while we work toward full resolution. Additionally, some services are continuing to work through a backlog of events such as Cloudtrail and Lambda. While most operations are recovered, requests to launch new EC2 instances (or services that launch EC2 instances such as ECS) in the US-EAST-1 Region are still experiencing increased error rates. We continue to work toward full resolution. If you are still experiencing an issue resolving the DynamoDB service endpoints in US-EAST-1, we recommend flushing your DNS caches. We will provide an update by 4:15 AM, or sooner if we have additional information to share.

UPDATE about 4 hours ago - at 10/20/2025 10:03AM

We continue to observe recovery across most of the affected AWS Services. We can confirm global services and features that rely on US-EAST-1 have also recovered. We continue to work towards full resolution and will provide updates as we have more information to share.

UPDATE about 4 hours ago - at 10/20/2025 09:27AM

We are seeing significant signs of recovery. Most requests should now be succeeding. We continue to work through a backlog of queued requests. We will continue to provide additional information.

UPDATE about 4 hours ago - at 10/20/2025 09:22AM

We have applied initial mitigations and we are observing early signs of recovery for some impacted AWS Services. During this time, requests may continue to fail as we work toward full resolution. We recommend customers retry failed requests. While requests begin succeeding, there may be additional latency and some services will have a backlog of work to work through, which may take additional time to fully process. We will continue to provide updates as we have more information to share, or by 3:15 AM.

UPDATE about 5 hours ago - at 10/20/2025 09:01AM

We have identified a potential root cause for error rates for the DynamoDB APIs in the US-EAST-1 Region. Based on our investigation, the issue appears to be related to DNS resolution of the DynamoDB API endpoint in US-EAST-1. We are working on multiple parallel paths to accelerate recovery. This issue also affects other AWS Services in the US-EAST-1 Region. Global services or features that rely on US-EAST-1 endpoints such as IAM updates and DynamoDB Global tables may also be experiencing issues. During this time, customers may be unable to create or update Support Cases. We recommend customers continue to retry any failed requests. We will continue to provide updates as we have more information to share, or by 2:45 AM.

UPDATE about 5 hours ago - at 10/20/2025 08:26AM

We can confirm significant error rates for requests made to the DynamoDB endpoint in the US-EAST-1 Region. This issue also affects other AWS Services in the US-EAST-1 Region as well. During this time, customers may be unable to create or update Support Cases. Engineers were immediately engaged and are actively working on both mitigating the issue, and fully understanding the root cause. We will continue to provide updates as we have more information to share, or by 2:00 AM.

UPDATE about 6 hours ago - at 10/20/2025 07:51AM

We can confirm increased error rates and latencies for multiple AWS Services in the US-EAST-1 Region. This issue may also be affecting Case Creation through the AWS Support Center or the Support API. We are actively engaged and working to both mitigate the issue and understand root cause. We will provide an update in 45 minutes, or sooner if we have additional information to share.

UPDATE about 7 hours ago - at 10/20/2025 07:11AM

We are investigating increased error rates and latencies for multiple AWS services in the US-EAST-1 Region. We will provide another update in the next 30-45 minutes.

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