Outage in Fivetran
Fivetran: Multiple connection syncs are failing with a "Token not found" error
Resolved MinorIncident Report
Summary AI Generated
Fivetran experienced intermittent connection sync failures with "Token not found" errors for 28 minutes due to an internal network disruption in the scheduling layer. The network issues caused cascading failures across dependent connection services, affecting customers' data synchronization processes. All services returned to normal operation once network connectivity was restored.
The issue has been identified and we are working to resolve it.
Components affected
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Latest Updates ( sorted recent to last )
RESOLVED
4 days ago - at 05/19/2026 10:41AM
Description:
We identified an issue where connections were intermittently failing with the error message: "UNAUTHENTICATED: Token not found".
Timeline:
The issue began on 2026-05-19 at 08:48 UTC and was resolved on 2026-05-19 at 09:10 UTC. During this period, customers may have experienced intermittent sync failures, with services recovering shortly afterwards.
Root Cause:
The issue was caused by failures within the scheduling layer due to an internal network disruption. This resulted in cascading failures across dependent connection services.
Resolution:
The affected connections recovered once network connectivity was restored. All services are currently operating normally.
IDENTIFIED
4 days ago - at 05/19/2026 10:15AM
The issue has been identified and we are working to resolve it.
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