Title: HTTP Error
Last modified: August 30, 2016

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# HTTP Error

 *  Resolved [TechnikSurfer](https://wordpress.org/support/users/techniksurfer/)
 * (@techniksurfer)
 * [10 years, 11 months ago](https://wordpress.org/support/topic/http-error-73/)
 * Hi,
 * I’ve got a problem. The Mailchimp Plugin is not connected with Mailchimp anymore.
   The Error: HTTP Error: Peer
    certificate cannot be authenticated with given CA
   certificates.
 * Because you write in your FAQ about the PHP CURL I wrote with my provider. PHP
   CURL is installed correctly.
 * Can you please help me?
 * Thanks a lot.
 * All the Best
 * Moritz
 * [https://wordpress.org/plugins/mailchimp-for-wp/](https://wordpress.org/plugins/mailchimp-for-wp/)

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Contributor [Harish Chouhan](https://wordpress.org/support/users/hchouhan/)
 * (@hchouhan)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/http-error-73/#post-6334152)
 * Hello TechnikSurfer,
 * Can you please share details as to what version of CURL is installed on your 
   server. There is a known issue with CURL 7.19.x. If your web host is using it
   please ask them to update CURL to the most recent stable version as version 7.19
   is over 6 years old.
 * If they are unwilling to do it, another option is to install the “Core Control”
   plugin and disable CURL from there: [https://wordpress.org/plugins/core-control/](https://wordpress.org/plugins/core-control/).
 *  Thread Starter [TechnikSurfer](https://wordpress.org/support/users/techniksurfer/)
 * (@techniksurfer)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/http-error-73/#post-6334190)
 * Hi,
 * the SSH says that 7.22.0 is installed:
 * dpkg -l | grep curl
    ii curl 7.22.0-3ubuntu4.14 Get a file from an HTTP, HTTPS
   or FTP server ii libcurl3 7.22.0-3ubuntu4.14 Multi-protocol file transfer library(
   OpenSSL) ii libcurl3:i386 7.22.0-3ubuntu4.14 Multi-protocol file transfer library(
   OpenSSL) ii libcurl3-nss 7.22.0-3ubuntu4.14 Multi-protocol file transfer library(
   NSS) ii libcurl4-nss-dev 7.22.0-3ubuntu4.14 Development files and documentation
   for libcurl (NSS) ii php5-curl 5.3.10-1ubuntu3.19 CURL module for php5
 *  Plugin Author [Danny van Kooten](https://wordpress.org/support/users/dvankooten/)
 * (@dvankooten)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/http-error-73/#post-6334196)
 * Hi TechnikServer,
 * That is weird, version 7.22 (albeit old, it’s over 5 years old) should be high
   enough to perform remote requests a HTTPS server. As you have shell access, is
   updating CURL an option for you? The latest version is 7.40.x and should definitely
   work.
 * Also, does running the following work for you?
 *     ```
       curl -L https://us1.api.mailchimp.com
       ```
   
 * If that doesn’t work, there are other options.
 * 1. Install the [Core Control](https://wordpress.org/plugins/core-control/) plugin
   and disable CURL as a transport, so WordPress will use the next available HTTP
   transport (Streams, usually).
 * 2. Add the following line to your theme its `functions.php` file to skip SSL 
   certificate verification. I don’t recommend doing this long-term.
 *     ```
       add_filter( 'https_ssl_verify', '__return_false' );
       ```
   
 * PS. What version of WordPress are you on?
 *  Thread Starter [TechnikSurfer](https://wordpress.org/support/users/techniksurfer/)
 * (@techniksurfer)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/http-error-73/#post-6334197)
 * Hi,
 * yes, this is working in the SSH. I searched for how to update curl via SSH but
   only found this code:
 *     ```
       apt-get update
       apt-get install php5-curl
       ```
   
 * But my virtual server says:
 * `php5-curl is the latest version`
 * Is there any other possibility to update CURL via SSH (I’m using ubuntu).
 * I’m using the WordPress version 4.2.3. I didn’t test it with the second plugin
   because it would be great if it would work with the update of CURL :D.
 * Thanks for your help.
 * Moritz

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘HTTP Error’ is closed to new replies.

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 * 4 replies
 * 3 participants
 * Last reply from: [TechnikSurfer](https://wordpress.org/support/users/techniksurfer/)
 * Last activity: [10 years, 10 months ago](https://wordpress.org/support/topic/http-error-73/#post-6334197)
 * Status: resolved