# IPv6 Networking Issues in DFW

- Provider: [Fly.io](https://down.guide/fly)
- Level: confirmed
- Impact: Partial outage
- lasted 5h 57m
- started 2026-09-23 06:18 UTC
- DFW - Dallas, Texas (US)
- us
- id: DWN-261ef4aa74
- Official page: https://status.flyio.net/incidents/01M36HPZ86G87MQXEM9MA40BXN

## Updates from Fly.io
### 2026-09-23 06:18 UTC: investigating
We are investigating IPv6 connectivity issues on a subset of hosts in DFW region. Machines on impacted hosts may see inbound/outbound connectivity issues over IPv6. IPv4 connectivity is not impacted.

### 2026-09-23 06:52 UTC: identified
One of the internet transit providers upstream of the affected hosts is performing regional maintenance, which is expected to complete at 10:00AM UTC. IPv6 connectivity to and from destinations using that transit may be impacted during this time window.

### 2026-09-23 10:52 UTC: identified
We are continuing to work on a fix for this issue.

### 2026-09-23 12:15 UTC: resolved
This incident has been resolved.

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