Incident S2 CORP-45409 on Sigfox Network

The incident is confirmed as Resolved after the monitoring period.
We will continue investigating and proceed to corrective actions, and build a detailed Incident Report

The downlink service and the backend have been restored.
All services should be nominal.
We are still closely monitoring the situation and will continue investigating on the root cause.
A Problem Management process will be held, and an Incident Report will be communicated as soon as we have determined the root cause.

The issue has been identified.
Callbacks instances have been restarted following a lock of the services.
Impact on callbacks success rate seems low due to retry mechanisms, only delayed dispatching.
Downlink sequences have been impacted due to this delay.
Backend portal is down but does not impact the connectivity services, messages are still processed.

Please be advised there is an incident on Sigfox network
Analysis of the root cause is still on-going and will be communicated to you as soon as possible.

Incident reference
CORP-45409

Severity
S2

Service Impact
Uplink messages capture - UP
Uplink message storage and archiving - UP
Uplink callbacks dispatch - FAILING
Uplink callbacks retrieval ("callback not sent" status) - WILL BE PARTIALLY AVAILABLE FOLLOWING THE INCIDENT
Downlink sequences - FAILING
Downlink customer platform call backs - FAILING
API service - UP
backend.sigfox.com access - UP

Start Date and Time
04/13/26 02:09 AM CEST

Root cause analysis
Analysis on-going