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Werk #20017: Suppress site connection errors for sites not queried by a report

Component Reporting & availability
Title Suppress site connection errors for sites not queried by a report
Date May 25, 2026
Level Prominent Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.6.0b1
Not yet released
Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p6
Not yet released
Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p32
Not yet released
Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

When generating a report scoped to specific sites — either via a customer context filter or explicit site filter on report elements — a disconnected site outside that scope would previously cause a "Site Connection Errors" page to appear, even though the report did not query that site at all. This has been fixed.

The site connection error page has also been redesigned: when sites in scope are unreachable, each affected site is now listed individually with its site ID clearly highlighted, replacing the previous single combined WARNING block.

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