# Login Issue Affecting Managed Clusters on Version 1.348

- Provider: [Dynatrace](https://down.guide/dynatrace)
- Level: confirmed
- Impact: Partial outage
- lasted 0m
- started 2026-10-30 12:34 UTC
- id: DWN-1e2966c1de
- Official page: https://status.io/pages/incident/546d8cb6af8407b6730000cb/6ae21ed84b61a805acedb648

## Root cause
> Identified - Our teams have identified a potential root cause of the issue preventing some Dynatrace Managed customers from logging in to their Managed clusters and are actively working toward a fix.

[Postmortem](https://status.io/pages/incident/546d8cb6af8407b6730000cb/6ae21ed84b61a805acedb648)

## Updates from Dynatrace
### 2026-10-30 12:34 UTC: resolved
October 28, 2026 4:12PM UTC 
 Investigating - We are aware of an issue preventing a limited number of Dynatrace Managed customers from logging in to their Managed clusters. This issue is isolated to clusters running version 1.348. Our teams are actively investigating.
We will provide our next update within two hours, or sooner as meaningful progress is made. We sincerely apologize for the disruption and appreciate your patience.
 October 28, 2026 6:22PM UTC 
 Investigating - We are actively investigating the issue preventing some Dynatrace Managed customers from logging in to their Managed clusters. 
The impact is limited to customers who use OpenID Connect (OIDC)-based single sign-on (SSO) authentication on Dynatrace Managed version 1.348; customers using other authentication methods or Managed versions are not affected.  
We will provide an update within the next two hours, or sooner if meaningful progress is made.
 October 28, 2026 8:48PM UTC 
 Identified - Our teams have identified a potential root cause of the issue preventing some Dynatrace Managed customers from logging in to their Managed clusters and are actively working toward a fix.  
The impact remains limited to customers who use OpenID Connect (OIDC)-based single sign-on (SSO) authentication on Dynatrace Managed version 1.348; customers using other authentication methods or Managed versions are not affected. Impacted customers can contact their Dynatrace support team for a potential workaround 
Implementing and validating the fix will require additional time. We will provide an update within the next 24 hours, or sooner if meaningful progress is made. We sincerely apologize for the disruption and appreciate your continued patience.
 October 29, 2026 6:14PM UTC 
 Monitoring - Our teams have implemented a fix for the issue that prevented some Dynatrace Managed customers from logging in to their Managed clusters. We are now actively monitoring the fix to ensure stability. 
The impact was limited to customers who use OpenID Connect (OIDC)-based single sign-on (SSO) authentication on Dynatrace Managed version 1.348; customers using other authentication methods or Managed versions were not affected. If you believe you are still impacted, we encourage you to contact your Dynatrace Support team for assistance. 
We will provide an update within the next 24 hours, or sooner if meaningful progress is made.
 October 30, 2026 12:34PM UTC 
 Resolved - Our teams have successfully implemented and validated a fix for the issue that prevented some Dynatrace Managed customers from logging in to their Managed clusters.
Following a period of monitoring, we have confirmed that logins are operating as expected and the issue is now resolved.
We sincerely apologize for the disruption and appreciate your patience while we worked to resolve this issue.

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