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Fly.io · Cloud and hostingSep 23, 2026, 06:18 UTC

IPv6 Networking Issues in DFW

MajorNot disclosedUpdated 20h ago
Sep 23, 06:18 UTCSep 23, 12:15 UTC
Duration
5h 57m
Impact
Major
Root cause
Not disclosed
Fly.io, 90 days
51 incidents
Affected
DFW - Dallas, Texas (US)Regional Availability - DFW - Dallas, Texas (US)
Status page

Final update

This incident has been resolved.

Timeline

  1. Resolved · Sep 23, 12:15 UTC
    This incident has been resolved.
  2. Identified · Sep 23, 10:52 UTC
    We are continuing to work on a fix for this issue.
  3. Identified · Sep 23, 06:52 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.
  4. Investigating · Sep 23, 06:18 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.

More from Fly.io

Full history
StartedIncidentDuration
Sep 2318:44 UTCPartial Sprites outage7h 28m
Sep 2314:47 UTCElevated private networking errors36m
Sep 2312:42 UTCUpstash unavailability in FRA region1h 22m
Sep 1504:08 UTCDepot builder failures1h 25m
Sep 1221:22 UTCNetwork issues in US West Coast50m
Sep 223:03 UTCSprites API Partial Outage1h 38m

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