You may encounter the error ‘SSL certificate problem, verify that the CA cert is OK’ while performing actions like the theme/plugin installation or WordPress version update, which uses cURLSSL.
This article will provide information on this error, its exact cause, and its resolution.
Error Message
RSS Error: WP HTTP Error: SSL certificate problem, verify that the CA cert is OK. Details: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed.
Cause
Various operations, such as theme/ plugin installation and the WordPress version update, require cURL.
WordPress uses its certificate bundle, overriding the global system certificate bundle. This error will appear if you use the outdated certificate bundle of WordPress. To fix it, you need to follow the steps given below –
Fix
- Download the latest certificate bundle from this link.
- Save it as ca-bundle.crt.
- Upload this file on wordpress-installation-folder)/wp-includes/certificates/ via FTP or cPanel file manager.
- Try installing a theme/ plugin or updating the WordPress setup.
