Sierra Wireless incident
Service Degradation Notification for Essentials1 SIM Subscriptions in the EU and NAM Regions (GNOC10687)
Sierra Wireless experienced a notice incident on December 28, 2025 affecting Data and SMS and 1 more component, lasting 6h 51m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Dec 28, 2025, 05:17 PM UTC
Semtech is observing a service degradation for Essentials1 SIM subscriptions in the EU and NAM regions. Devices that are currently present in these regions may find difficulties establishing a new data session, and for a few subscribers, the old data session may drop. We have reported the issue to our partner carrier. An investigation to determine the scope and cause is underway. Impact: Impacted devices may experience delays in establishing Data, SMS, and Voice Services. We will provide an update in 30 minutes.
- investigating Dec 28, 2025, 05:45 PM UTC
Our engineering teams continue to work closely with our carrier partner, and the issue has been formally escalated to ensure appropriate priority and attention. Active coordination remains in place to investigate the underlying cause and drive the issue toward a full resolution, with the goal of restoring service stability as quickly as possible. Impact: Impacted devices may experience delays in establishing Data, SMS, and Voice Services. We will provide an update in 1 hour.
- identified Dec 28, 2025, 06:47 PM UTC
Our engineering teams are currently observing signs of improvement; however, the issue has not yet been fully resolved. Our partner carrier continues to actively work toward a resolution. Impact: Impacted devices may experience delays in establishing Data, SMS, and Voice services. We will provide another update within one hour or sooner if additional information becomes available.
- identified Dec 28, 2025, 07:46 PM UTC
Our engineering teams are currently observing signs of improvement; however, the issue has not yet been fully resolved. Our partner carrier continues to actively work toward a resolution. Impact: Impacted devices may experience delays in establishing Data, SMS, and Voice services. We will provide another update within one hour or sooner if additional information becomes available.
- identified Dec 28, 2025, 08:44 PM UTC
We are continuing to work with our roaming partner to investigate this issue. At this time, the roaming partner has advised that there are no new updates available. Due to the ongoing customer impact, the issue has been escalated for further investigation. Impact: Impacted devices may experience delays or failures when establishing Data, SMS, and Voice services. We will provide an update in two hours or sooner if additional information becomes available.
- monitoring Dec 28, 2025, 10:02 PM UTC
Our partner carrier has restored service, and our engineering teams are actively monitoring to ensure continued stability. If no further impacts are observed during the monitoring period, the issue will be considered resolved.
- resolved Dec 29, 2025, 12:09 AM UTC
This incident has been resolved.