Resolved Could not renew Let's Encrypt certificate on domain

[MichaelG]

Hi all,

I tried to renew the let's encrypt certificate but it outputs an error

Additional error details:
Invalid response from https://acme-v01.api.letsencrypt.org/acme/authz/Zs4ve5PZXYOdsiuAkE-5Ob_F94KM_62Czh1CeM-qrN8.
Details:
Type: urn:acme:error:connection
Status: 400
Detail: Fetching http://mydomain.net/.well-known/acme-challenge/Y6eLVvpBoApdGVV4MRD64rkka5cUqX_dgoYzCLWhmfI: Timeout

I found an article on plesk support but that didn't work either.
Unable to install Let's Encrypt SSL: 400 Timeout

.well-known + acme folders are accessible.

I already had ipv6 activated and it worked before. Is there any way to fix this? my site is visually broken because my image links are all using https.

My server info:
Running CentOS 7
Plesk Onyx 17
PHP 7.0.17 as FPM application served by nginx
mysql 5.5
ngninx 1.11.10

Please let me know if you need any more info.

Thanks!

 

[crtxz]

Was the domain before under another subscription? Check if there is still a SSL installed on the old subscription and remove it from there.

 

[MichaelG]

I haven't changed to another subscription. Other domain names works perfectly. I double checked all the webhost settings but still doesn't work..

 

[UFHH01]

Hi MichaelG,

pls. consider to RE-assign the corresponding IPv6, after you setup at

=> HOME > Domains > YOUR-DOMAIN.COM > Web Hosting Access​

..to either "none", or to another IP at your dropdown - list.

 

[MichaelG]

I have fixed the problem. Thank you for the replies.

I disabled ipv6 using what UFHH01 said.
AND...
by the setting: "Select the domain aliases to secure"
to "none selected"

It seems the domain alias was also causing the problems.