Network packet loss

Incident Report for IONOS Cloud

Resolved

We are marking this incident as resolved.
The Root Cause of the incident was a DDOS attack on customers hosted in our infrastructure. While the attack was largely successfully mitigated by our countermeasures a intermittent saturation of an affected link resulted in an increase of package loss.

Our network team has evaluated the countermeasures' effectiveness and the identified bottleneck and is currently working on technical and organizational improvements to further decrease detection time for comparable events.
Posted May 19, 2026 - 16:17 UTC

Monitoring

A fix has been implemented and we are monitoring the results.
Posted May 15, 2026 - 13:18 UTC

Investigating

We are writing to inform you that we have been experiencing sporadic connection issues and substantial delays on packet delivery.

Network technicians have started working on the occurrence immediately after detection and will isolate the problem and solve the issue as quick as possible. However, it is possible that there will be a certain degradation in connection quality affecting individual virtual resources.

We will inform you as soon as the functionality has been restored.
Posted May 15, 2026 - 11:59 UTC
This incident affected: Location DE/TXL (Network).