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Outage in IONOS Cloud

MK8s: Partial Connectivity Degradation to Control Planes

Major
March 16, 2026 - Started about 19 hours ago
Official incident page

Incident Report

Some customers may experience connection problems to the control plane and degraded functionality of kubernetes. Our teams are investigating and working on a resolution.
Components affected
IONOS Cloud Managed Kubernetes

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Latest Updates ( sorted recent to last )
MONITORING about 8 hours ago - at 03/16/2026 07:59PM

Final changes have been applied to all afffected clusters resolving the issue. We are now monitoring the progress

IDENTIFIED about 8 hours ago - at 03/16/2026 07:58PM

Final changes have been applied to all afffected clusters resolving the issue. We are now monitoring the progress

IDENTIFIED about 8 hours ago - at 03/16/2026 07:34PM

The changes applied to some control plane clusters have had positive effects. The team is continuing the rollout to other affected clusters.

IDENTIFIED about 14 hours ago - at 03/16/2026 01:56PM

We are marking DBaaS as recovered.
Our Kubernetes Team is currently working on stabilizing the Kubernetes Control Plane. We are focusing on mitigating recurring load spikes influencing stability.

IDENTIFIED about 15 hours ago - at 03/16/2026 12:57PM

We are marking the Container Registry Service as recovered.

IDENTIFIED about 15 hours ago - at 03/16/2026 12:22PM

We are closing the incident for the AI Model Hub. All metrics have recovered and the service should be up and running again normally.

IDENTIFIED about 16 hours ago - at 03/16/2026 11:57AM

We are adding the Container Registry as an affected Service. Customers may currently experience issues pulling and pushing images from the Registry.

IDENTIFIED about 16 hours ago - at 03/16/2026 11:37AM

Our Kubernetes Team has deployed a fix for the affected AI Model Hub Database Services. We currently see metrics improving and monitoring the situation closely.

IDENTIFIED about 17 hours ago - at 03/16/2026 11:05AM

We are expanding the scope of this incident to include DBaaS and AI Model Hub. We have observed an increased error count originating from PostgresDB on Kubernetes. Additionally, to improve transparency, the previously reported separate incident regarding the AI Model Hub (https://status.ionos.cloud/incidents/rmgs845klm32) is being merged into this primary incident.

IDENTIFIED about 18 hours ago - at 03/16/2026 10:04AM

The team has identified the root cause as a resource constraint within the etcd database. Mitigation efforts are currently underway.

INVESTIGATING about 19 hours ago - at 03/16/2026 08:24AM

Some customers may experience connection problems to the control plane and degraded functionality of kubernetes.
Our teams are investigating and working on a resolution.

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