I looking for a long time for a proper solution to update my Let’s Encrypt Certificate of my Seafile Cloud.
I configed IIS like in this description: https://www.weavweb.net/2015/06/07/seafile-https-sync-on-windows-server-2012r2-step-by-step/
Every time I’m trying to update the certificate the Cert-Client (Certiy the Web Client) tells me the error “Config checks failed to verify http://cloud.jotoma.de is both publicly accessible and can serve extensionless files e.g. http://cloud.jotoma.de/.well-known/acme-challenge/configcheck”. I’ve already tried many compinations to fix this issue but nothing helped (Challenge: http-01). The challenge tls-sni-01 gives me also an error.
I also searched in the web but found nothing about it.
I really appreciate it if someone could help me please!