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Outage in Demandbase

AWS Multiple services Operational issue

Resolved Major
October 20, 2025 - Started 6 months ago - Lasted 1 day
Official incident page

Incident Report

AWS 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.

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Latest Updates ( sorted recent to last )
RESOLVED 6 months ago - at 10/21/2025 01:10PM

This incident has been resolved.

MONITORING 6 months ago - at 10/20/2025 12:53PM

A fix has been implemented and we are monitoring the results.

INVESTIGATING 6 months ago - at 10/20/2025 12:52PM

AWS 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.

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