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Outage in Fly.io

Network issues in US West Coast

Resolved Minor
September 12, 2026 - Started about 14 hours ago - Lasted about 1 hour
Official incident page

Incident Report

Summary AI Generated

Fly.io experienced upstream network issues affecting its Los Angeles (LAX) and Sunnyvale (SJC) regions for approximately 52 minutes, causing elevated latency and packet loss for hosted apps and US West Coast clients. Private networking between Fly Machines and most outbound connections were restored during the monitoring phase before full resolution. The incident was fully resolved within the hour.

We are investigating upstream network issues from US West Coast (SJC, LAX). Apps hosted in US West regions may experience higher latency or packet loss, and requests from clients physically located in US West may experience higher latency.

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Latest Updates ( sorted recent to last )
RESOLVED about 13 hours ago - at 09/12/2026 10:12PM

This incident has been resolved.

MONITORING about 14 hours ago - at 09/12/2026 09:57PM

Private networking between Fly Machines is resolved, and most outbound connections are healthy. We're continuing to monitor the network, and some issues will still be expected from clients physically located in US West until upstream transit issues are resolved.

INVESTIGATING about 14 hours ago - at 09/12/2026 09:22PM

We are investigating upstream network issues from US West Coast (SJC, LAX). Apps hosted in US West regions may experience higher latency or packet loss, and requests from clients physically located in US West may experience higher latency.

Latest Fly.io outages

Upstream network issues - 11 days ago
Packet loss in ORD - 13 days ago
Networking Issues in GRU - 16 days ago

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