https://community.letsencrypt.org/t/issue-of-ssl-certificate-fails/246657/9
Issue of SSL Certificate fails - #9 by MikeMcQ - Help - Let's Encrypt Community Support
Apr 18, 2026 - Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all...
https://community.letsencrypt.org/t/sudden-some-challenges-have-failed-issue-on-an-old-website/243642/7
Sudden 'some challenges have failed' issue on an old website - #7 by MikeMcQ - Help - Let's Encrypt...
Dec 6, 2025 - Hello! Our site is running Windows Server 2019 with Apache 2.4 and certbot 1.24.0, and we began to have issues with challenges timing out. I checked the edge...
https://community.letsencrypt.org/t/dns-manual-failure-going-on-4-75-hours-so-far/241622/46
DNS Manual Failure Going on 4.75 hours so far - #46 by MikeMcQ - Help - Let's Encrypt Community...
Sep 29, 2025 - I have 8 certificates, 50 hostnames. I run my own DNS server (and have for the last 30+ years). I don't have the option of running acme on my web-server. So I...