Outage in IONOS Cloud
Increased Error Rate on S3 Cloudian
Resolved MinorIncident Report
We are currently investigating an increased error rate for requests to S3 Cloudian in DE/FRA.
Components affected
IONOS Cloud S3 Object StorageTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
6 months ago - at 11/10/2025 04:48PM
We want to share the following Root Cause Analysis:
What happened:
On the 6th of November, our Monitoring Team alerted us to increased error rates for requests to S3 Cloudian in DE/FRA. The increased error rate was caused by a network-level issue related to MTU settings lower than standard, causing intermittent issues for some connections.
What we are doing to prevent this from happening again:
On 11.11.2025, a fix will be rolled out to the affected network, which will correct the MTU settings permanently.
MONITORING
6 months ago - at 11/06/2025 12:14PM
Error rate has dropped. We are closely monitoring the situation. We are compiling a root cause analysis.
INVESTIGATING
6 months ago - at 11/06/2025 11:14AM
We are currently investigating an increased error rate for requests to S3 Cloudian in DE/FRA.
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