In my server Let's Encrypt issue the SSL Cert often have the error like below:
Invalid response from https://acme-v02.api.letsencrypt.org/acme/authz-v3/135884297466.
Detail: During secondary validation: 22.214.171.124: Fetching http://seagullmodels.com/.well-known/acme-challenge/SItq48MB_BFmYpI5KDMLJ879GIZwDeN3UpTeu5Koz_4: Timeout during connect (likely firewall problem)
I already checked the link verify is working around the world , the link http://seagullmodels.com/.well-known/acme-challenge/SItq48MB_BFmYpI5KDMLJ879GIZwDeN3UpTeu5Koz_4
even I checked the log access in my server, have a record access by let's encrypt with status 200.
here is the log access in my server:
2022-07-29 07:11:12 126.96.36.199 GET /.well-known/acme-challenge/SItq48MB_BFmYpI5KDMLJ879GIZwDeN3UpTeu5Koz_4 X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=3c7ecff0-81ba-4131-8242-dc8a664c1612&SERVER-STATUS=200 80 - 188.8.131.52 HTTP/1.1 Mozilla/5.0+(compatible;+Let's+Encrypt+validation+server;++https://www.letsencrypt.org) - acme-challenge.localhost 200 0 0 501 269 617
I don't know why the verify link had been access by let encrypt but It can not issue the cert and raise the error timeout.