Let's Encrypt doesn't refresh

I have issue with Let’s Encrypt certificate. I created cert more than one year ago. I successfuly updated it few times. Now it is still working, but will expire soon. I run Ubuntu 22.04.4 LTS, NC is on snap (just refgreshed).

What I’m doing:
$ sudo /snap/bin/nextcloud.enable-https lets-encrypt

And result:

  • The following errors were reported by the server:

    Domain: chmurka.garden-media.eu
    Type: None
    Detail: DNS problem: SERVFAIL looking up A for
    subdomain.main-domain - the domain’s nameservers may be
    malfunctioning; DNS problem: SERVFAIL looking up AAAA for
    subdomain.main-domain - the domain’s nameservers may be

DNS config of main-domain:

It’s cenzored, but dots (.) are reflected. My hosting is using IPv4 only. What I can do with this “AAAA” (v6)?

well this is no real NC-problem but rather one of your setup/environment

I found several questions like yours on the net using a searchengine (ddg)
if these won’t fit pls feel free to do more and intense searching yourself :wink:


Sorry, my mistake. This is also about ‘A’ record. Let’s Encrypt should first check ‘AAAA’ and then if not exists ‘A’ schould be checked. It’s weired because NC can be accessed from web and cert is working OK…

I broke my cert config completely… I’ll wait for tomorrow co all DNS records will be working and then I’ll continue.

Solving by waiting… I fixed some DNS records but it wasn’t working. After 2-3h it just run OK.

if you use geoblocking you have to open Port 80 for:

US, Singapore and Sweden