Dear Let's Encrypt community, on a server that I administer, I got the problem as in the title. IPv4, the IPv6 is not working on that machine. Seems that on that domain ( acme-v01.api.letsencrytp.org ) , the certificate is wrong. curl -vvI https://acme-v01.api.letsencrypt.org Rebuilt URL to: http…

Found the problem. A manual entry on /etc/hosts …

Certificate did not match expected hostname: acme-v01.api.letsencrypt.org

system Closed May 3, 2018, 11:10am 3

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.

Topic		Replies	Views
IPv6 broken on acme-v01.api.letsencrypt.org? Help	5	4223	December 10, 2015
RSA server certificate CommonName (CN) `Plesk' does NOT match server name!? Help	7	3469	November 15, 2016
Let's Encrypt Verification failed Help	5	651	January 17, 2020
Can't access acme-v02.api.letsencrypt.org over IPv6 Help	24	1517	January 6, 2023
Acme servers on ipv6 not respoding on 443 [fixed] Help	4	1025	April 20, 2017