Emilian I also get the same errors on Wordpress fresh install.. The REST API is one way WordPress, and other applications, communicate with the server. One example is the block >editor screen, which relies on this to display, and save, your posts and pages. The REST API request failed due to an error. Error: cURL error 28: Operation timed out after 10001 milliseconds with 0 bytes received (http_request_failed) Background updates ensure that WordPress can auto-update if a security update is released for the version you are >currently using. Warning Could not confirm that the wp_version_check() filter is available.