Let's Encrypt validation fails silently during outages
Secondary validation fails with networking errors during a Let's Encrypt incident, and affected users get no clear notice.
Tier I · Proven The best-established problems.
12 public reports · first reported 11 September 2026 · last reported 11 September 2026
What's going wrong
During Let's Encrypt incidents, certificate requests fail with networking errors while performing secondary validation, and users running certbot or similar ACME clients are left guessing.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 12 reports are about, and how many came each month.
- Related problems.
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