Current answer
Fly.io experienced a major incident: IPv6 Networking Issues in DFW. ServiceAlert observed recovery on Sep 23, 2026.
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Incident Lifecycle
Affected Components
DFW - Dallas, Texas (US)
Incident Timeline
Identified
We are continuing to work on a fix for this issue.
Sep 23, 2026 at 10:52 AM 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.
Sep 23, 2026 at 6:52 AM 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.
Sep 23, 2026 at 6:18 AM UTC
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