# IPv6 egress issues on a subset of IAD hosts

- Provider: [Fly.io](https://down.guide/providers/fly)
- Confidence: Confirmed
- Impact: Degraded
- lasted 23m
- started 2026-11-06 09:55 UTC
- id: DWN-df6c25750b
- Official page: https://status.flyio.net/incidents/01M6R4H5Y3QECXHCX103XVNSE1

## Summary
Fly.io says IPv6 egress was unavailable on a subset of IAD hosts due to an upstream provider misconfiguration, while internet-facing IPv6 services were unaffected. As of 10:17 UTC on 2026-11-06, the incident is resolved and all affected hosts are back to normal.

_Written by anthropic/claude-haiku-5.5 from Fly.io's own updates._

## Updates from Fly.io
### 2026-11-06 09:55 UTC: identified
Due to an upstream provider issue, IPv6 egress is unavailable on a subset of IAD hosts. Internet-facing IPv6 services are unaffected.

### 2026-11-06 10:17 UTC: resolved
All affected hosts are back to normal.

From the builder: does your app depend on Fly.io? [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=fly) detects problems in your own logs without hand-written monitors, and you can ask it in plain language which errors mention Fly.io.

---
down.guide reads providers' official status pages every minute and adds its own evidence, always labeled. Free, no account. Agents: MCP at https://down.guide/mcp, REST at https://down.guide/api/v1, feeds at https://down.guide/feed. Built by [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=DWN-df6c25750b), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.