Fly.io incident
IPv6 Networking Issues in DFW
Resolved after 5 hours 3 minutes, on September 23, 2026.
We are continuing to work on a fix for this issue.
Update timeline
- identified Sep 23, 2026, 07:12 AM UTC
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.
- investigating Sep 23, 2026, 07:12 AM UTC
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.
- identified Sep 23, 2026, 11:12 AM UTC
We are continuing to work on a fix for this issue.
- resolved Sep 23, 2026, 01:07 PM UTC
This incident has been resolved.
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