Networking Issues in GRU

What to do

• Check whether you use Fly.io GRU - Sao Paulo, Brazil in latam. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 39m it lasted.

  Anything that failed between 2026-08-28 21:56 UTC and 2026-08-28 22:36 UTC may need a replay.

• Subscribe to Fly.io's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=fly works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Fly.io 5

1. investigatingAug 28, 2026, 9:56 PM UTC

   We are investigating networking issues impacting some hosts in GRU (São Paulo, Brazil) region. Some apps in GRU may experience increased latency or packet loss.

   provider

2. monitoringAug 28, 2026, 10:00 PM UTC

   Networking performance in GRU has normalized and we are no longer seeing issues. We are continuing to monitor to ensure a full recovery.

   provider

3. identifiedAug 28, 2026, 10:12 PM UTC

   We are seeing a recurrance in networking issues in GRU. Some apps in the region may experience increased latency or packet loss. We are working with our upstream networking provider to resolve.

   provider

4. identifiedAug 28, 2026, 10:36 PM UTC

   Our upstream provider has implemented a fix. Network performance in GRU has normalized.

   provider

5. resolvedAug 28, 2026, 10:36 PM UTC

   This incident has been resolved.

   provider

Corrections

None so far.

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