Letsencrypt stopped auto-renewing, now expired, cannot renew

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Hi @jbrescher1, and welcome to the LE community forum :slight_smile:

It seems that (your ISP has or) you have blocked port 80 since your last renewal.
OR you have disabled port 80 in Apache.
Note: Port 80 is required to pass the HTTP-01 authentication challenge.

HTTP access fails:

curl -Ii http://fe-cloud.dyndns.biz/
curl: (56) Recv failure: Connection reset by peer

HTTPS access succeeds:

curl -Iik https://fe-cloud.dyndns.biz
HTTP/2 302
content-security-policy: default-src 'self'; script-src 'self' 'nonce-TTFFayt4ZFJTejFrWlFKSytyMFBxdk43WXBOWWtBcmJTZm9wZldMK21oOD06Y0N0R3RVSVpFMTRoREROenNQbzdrb1VUVGZ0aDVWL29ISkpMQ3dHZjQzND0='; style-src 'self' 'unsafe-inline'; frame-src *; img-src * data: blob:; font-src 'self' data:; media-src *; connect-src *; object-src 'none'; base-uri 'self';
expires: Thu, 19 Nov 1981 08:52:00 GMT
cache-control: no-store, no-cache, must-revalidate
pragma: no-cache
...
location: https://fe-cloud.dyndns.biz/index.php/login
content-type: text/html; charset=UTF-8
date: Fri, 31 Mar 2023 05:04:18 GMT
server: Apache/2.4.52 (Ubuntu)
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