# Ably: Elevated connection errors in us-east-1

- Provider: [Ably](https://outages.cc/ably.md)
- Type: Incident
- State: Resolved
- Worst impact: Degraded performance
- Started: 2026-10-25 21:24 UTC
- Resolved: 2026-10-26 11:45 UTC (lasted 14 h 21 min)
- Components: US East (Northern Virginia), Ably Pub/Sub - US East (Northern Virginia)
- Official update: https://stspg.io/xzs7yhdsyksy

## Updates from Ably

### resolved, 2026-10-26 11:45 UTC

us-east-1 is reenabled and the service is operating normally. The root cause has been confirmed to be a defective Network Load Balancer that was causing a small fraction of connection attempts in the region to fail. We are awaiting a postmortem from AWS on the issue, and will publish our own postmortem here once we have that.

### monitoring, 2026-10-25 22:55 UTC

us-east-1 remains disabled. All traffic is being routed to other regions so there is no ongoing impact on service.

### monitoring, 2026-10-25 21:33 UTC

Traffic is no longer being routed to us-east-1, but instead to us-east-2 and us-west-1. We are continuing to investigate the root cause of the networking issue in us-east-1.

### investigating, 2026-10-25 21:24 UTC

We are seeing an elevated rate of connection errors in the us-east-1 region, seemingly as a result of a partial loadbalancer failure. We are disabling the region so traffic will be routed to other US sites.