Renewing certificate getting error: Problem binding to port 80: Could not bind to IPv4 or IPv6

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My domain is: nttdata.westeurope.cloudapp.azure.com

I ran this command: certbot renew

It produced this output:`Saving debug log to C:\Certbot\log\letsencrypt.log


Processing C:\Certbot\renewal\nttdata.westeurope.cloudapp.azure.com.conf


Cert is due for renewal, auto-renewing...
Plugins selected: Authenticator standalone, Installer None
Renewing an existing certificate
Performing the following challenges:
http-01 challenge for nttdata.westeurope.cloudapp.azure.com
Cleaning up challenges
e[31mAttempting to renew cert (nttdata.westeurope.cloudapp.azure.com) from C:\Certbot\renewal\nttdata.westeurope.cloudapp.azure.com.conf produced an unexpected error: Problem binding to port 80: Could not bind to IPv4 or IPv6.. Skipping.e[0m
e[31mAll renewal attempts failed. The following certs could not be renewed:e[0m
e[31m C:\Certbot\live\nttdata.westeurope.cloudapp.azure.com\fullchain.pem (failure)e[0m


All renewal attempts failed. The following certs could not be renewed:
C:\Certbot\live\nttdata.westeurope.cloudapp.azure.com\fullchain.pem (failure)


e[31m1 renew failure(s), 0 parse failure(s)e[0m`

My web server is (include version): IIS

The operating system my web server runs on is (include version): Windows Server 2019

My hosting provider, if applicable, is: Microsoft Azure

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):1.8.0

Hi Guys,

I wanted to renew my Certificate. But it's showing me this Error:

" Problem binding to port 80: Could not bind to IPv4 or IPv6."

The Site is reachable via Port 80. I have no Idea where the problem can be. Maybe anybody of you have a Idea.

Thanks and Regards,
Aftab

Hi @ager24

there

is your reason.

Please read how --standalone works.

and switch to another authenticator or stop your webserver.

1 Like

Okay Thanks, I got it. I am only wondering why it has been created the first time. At that time I had the Webserver in Place too.

Thank You for your Help.

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