Werk #20005: Agent updater: Show meaningful error when authentication to the central site fails
| Component | Agent bakery | ||||||
| Title | Agent updater: Show meaningful error when authentication to the central site fails | ||||||
| Date | Jul 21, 2026 | ||||||
| Level | Trivial Change | ||||||
| Class | Bug Fix | ||||||
| Compatibility | Compatible - no manual interaction needed | ||||||
| Checkmk versions & editions |
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In distributed setups, an unauthenticated agent updater request forwarded to the central site was reported on the remote site as a misleading "Checkmk version mismatch?" error, because the central site answered with HTTP 200 and an HTML page that could not be parsed as JSON.
The central site now returns HTTP 401 for such requests, so the remote site surfaces a clear authentication error instead.