Outage in Fly.io

IPV6 Networking Issues on some IAD hosts

Resolved Minor
October 20, 2025 - Started about 21 hours ago - Lasted about 18 hours
Official incident page

Incident Report

We are currently investigating an IPv6 connectivity issues with a small number of hosts in IAD.

Need to monitor Fly.io outages?

One place to monitor all your cloud vendors. Get instant alerts when an outage is detected.

Try IsDown risk-free 14-day free trial · No credit card required
Latest Updates ( sorted recent to last )
RESOLVED about 4 hours ago - at 10/21/2025 04:36PM

This incident has been resolved.

MONITORING about 5 hours ago - at 10/21/2025 03:46PM

A fix has been implemented and we're monitoring results. There are still a small amount of machines with lingering issues which we're working to resolve; in the mean time, you may also create new machines to resolve this.

INVESTIGATING about 21 hours ago - at 10/20/2025 11:05PM

We are currently investigating an IPv6 connectivity issues with a small number of hosts in IAD.

The Status Page Aggregator Built for IT Teams

With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.

Start free trial

No credit card required · Cancel anytime · 4522 services available

Integrations with Slack Microsoft Teams Google Chat Datadog PagerDuty Zapier Discord Webhook