Not able to renew certificate with http-01

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My domain is:
I ran this command:
certbot renew
It produced this output:

certbot --force-renew
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator apache, Installer apache
Starting new HTTPS connection (1):

Which names would you like to activate HTTPS for?


Select the appropriate numbers separated by commas and/or spaces, or leave input
blank to select all options shown (Enter ‘c’ to cancel):
Renewing an existing certificate
Performing the following challenges:
http-01 challenge for
Waiting for verification…
Cleaning up challenges
Failed authorization procedure. (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching******************************************: Timeout during connect (likely firewall problem)


  • The following errors were reported by the server:

    Type: connection
    Detail: Fetching******************************:
    Timeout during connect (likely firewall problem)

    To fix these errors, please make sure that your domain name was
    entered correctly and the DNS A/AAAA record(s) for that domain
    contain(s) the right IP address. Additionally, please check that
    your computer has a publicly routable IP address and that no
    firewalls are preventing the server from communicating with the
    client. If you’re using the webroot plugin, you should also verify
    that you are serving files from the webroot path you provided.

My web server is (include version):

The operating system my web server runs on is (include version):

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don’t know): YEs

I’m using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you’re using Certbot):


In order for a let’s Encrypt certificate to be renewed with http validation, you must have port 80 open and able to receive / respond to requests. As of now, the port is currently closed.
Please open the port and try again.

Thank you

Hi @seupure

there are a lot of old certificates visible (first from 2017-01-30).

Looks like you have used tls-sni-01 validation via port 443. That's not longer supported, so you have to use another challenge type.


But http-01 validation requires an open port 80, your port 80 is closed. Not configured or blocked via a firewall or a missing router forward.

There is no answer ( ):

Domainname Http-Status redirect Sec. G -14 10.027 T
Timeout - The operation has timed out 403 1.140 M
Forbidden -14 10.026 T
Timeout - The operation has timed out
Visible Content:

A timeout means that there is a firewall or there is no vHost configured.

So create a vHost with that domain name and add it.

Then recheck your domain to see, if the two lines with the timeout answers.

These are outgoing connections.

That's required, but doesn't say something about incoming connections.

You can't check your incoming connection from your server.

Use a tool like to check that:

Domainname Http-Status redirect Sec. G -14 10.027 T
Timeout - The operation has timed out 403 1.140 M
Forbidden -14 10.023 T
Timeout - The operation has timed out

Only timeouts, so http-01 validation can't work.

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