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#lets-encrypt

2 stories

Banner: cert-manager HTTP-01 challenge failing with 404 because of an ingress class mismatch

DevOps & CI/CD Bug Report

cert-manager certificate stuck: HTTP-01 challenge wrong status code 404, expected 200

Ryan Pham · Oct 1, 2025 · 6 min read

A new subdomain's certificate sat in pending for hours with a self check error: wrong status code 404, expected 200. The challenge solver created its Ingress with an ingress class our controller ignored. Setting the class on the solver and checking the redirect path fixed issuance.

Banner: TLS certificate chain missing its intermediate certificate, breaking Android and curl clients

Networking & DNS Bug Report

SSL works in Chrome but fails on Android and curl: incomplete certificate chain

Daniel Tran · Dec 19, 2024 · 8 min read

Our API certificate renewal looked perfect in desktop Chrome, yet the Android app, curl and a partner's Java service all rejected it. The server sent only the leaf certificate without the intermediate. Serving the full chain fixed every client at once.