WinError 10013 - Problem binding to port 80

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. |, so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:

I ran this command: certbot certonly --standalone

It produced this output: C:\Windows\system32>certbot certonly --standalone
Saving debug log to C:\Certbot\log\letsencrypt.log
Please enter the domain name(s) you would like on your certificate (comma and/or
space separated) (Enter 'c' to cancel):
Requesting a certificate for
Problem binding to port 80: [WinError 10013] An attempt was made to access a socket in a way forbidden by its access permissions
Ask for help or search for solutions at See the logfile C:\Certbot\log\letsencrypt.log or re-run Certbot with -v for more details.

My web server is (include version): Jellyfin 10.8.13

The operating system my web server runs on is (include version): WindowsServer 2016

My hosting provider, if applicable, is: -

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

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

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): 2.8.0

Welcome @knoppid

The EFF is discontinuing support for Windows in Certbot starting next month. You should not use it for new Windows installations.

See below thread for suggested alternatives. The problem you are having is that Certbot is not well integrated into the way Windows shares ports. One of these Windows-specific alternatives will work better.

For Jellyfin, you might even consider a proxy like Caddy which manages the certs for you. I saw that mentioned in talks about Jellyfin when I searched just now. In fact, here is a how-to from a dev of caddy on the Jellyfin forum (link here)


Thank you very much!


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