Resolved I can not install certificate lets encrypt

[python]

I have created a subdomain and when I installed the lets encrypt it gives me the following error:

Invalid response from https://acme-v01.api.letsencrypt.org/acme/authz/rwWXeqctp1vc6-sss29qakiTx8pbViKvS9wW7rFG39c.
Details:
Type: urn:acme:error:connection
Status: 400
Detail: Fetching http://xxx.xxxxxxx.com/.well-known/acme-challenge/jg3m5JeXl-jHOJf6GLsitB5HGxVkoQaGHmv7Fu5wG2c: Timeout after connect (your server may be slow or overloaded)

Anyone know what might be happening,
in the main domain I already have encryption installed, will it be not allowed for more domains?

 

[Monty]

This error means that the servers of Let's Encrypt tried to connect to your subdomain to retrieve the security token but this connection timed out.

Please make sure:
* That the DNS entries of your subdomain are pointing to the correct IP
* That your subdomain is reachable from the outside world
* That you do not have any IP restrictions (firewall rules) that prevent connections from outside IPs

 

[python]

I contribute the error that gives me to aceder via https:

[Wed Apr 25 10:08:16.535391 2018] [ssl:warn] [pid 8307] AH01909: RSA certificate configured for default-2a02xxx:443 does NOT include an ID which matches the server name

Add that in the main domain you have installed and working correctly, the ssl certificate and in the configuration of the active subdomain the ssl of the main domain but it does not work.

 

[python]

This error means that the servers of Let's Encrypt tried to connect to your subdomain to retrieve the security token but this connection timed out.

Please make sure:
* That the DNS entries of your subdomain are pointing to the correct IP
* That your subdomain is reachable from the outside world
* That you do not have any IP restrictions (firewall rules) that prevent connections from outside IPs

Hello EmmanuelD, sorry I did not see your message, I will verify what you say, thank you

 

[python]

check the dns and apparently everything is fine, how could you verify where the error is?
regards

 

[Monty]

* Can you access your subdomain from an outside IP? Ask a friend to access it
* Check the httpd log files at /var/www/vhosts/your.subdomain.tld/logs/ and check if you see connections from Let's Encrypt servers

 

[python]

hello thank you again for helping me, at last I solved it, it was exactly the dns I had ipv6 that eliminated it and it worked.
regards