Intermittent connection timeouts and resets

Incident Report for Vaillant Group Partner API

Resolved

This incident has been resolved.

Posted Oct 13, 2026 - 15:15 CEST

Monitoring

From 05:30 to 08:30 CEST, our API services experienced intermittent connection timeouts and connection resets due to an issue affecting a central infrastructure component. The issue has been mitigated, and service stability has been restored. We are actively monitoring the environment to ensure continued normal operation.

Posted Oct 09, 2026 - 13:39 CEST

This incident affected: APIs (authorization server, advanced diagnostics API v1, advanced settings API v1, consumption API v1, energy management API v1, history API v1, notification push, notifications API v1, schedules API v2, settings API v1, settings API v2, states API v2, systems API v2, system registration API v1, trouble code information API v1) and developer portal, end-customer preferences center, end-customer IDM.