Fix the WordPress ‘Missed Schedule’ Error

Many people have noticed that with some of the newer versions of WordPress the scheduled posts feature has not been working.  Rather than publishing the scheduled post on time it simply displays the post in the backend with the message “Missed Schedule.”  If this is happening to you then I’ve got a very simple solution for you.

WordPress 2.9 has more features and as such it carries a heavier load on servers.  As a heavier program, it sometimes times out before accomplishing the actual task of publishing your post.

Some systems would start the publish process and then not respond in the 1/100th of a second that WordPress allows it to wait before it would timout.  By changing the timeout time to 1 second or even longer people have been able to fix it.

To fix the issue simply locate the WordPress file named cron.php and locate the line of code that should be at or around line 232.  Look below to see the their code compared to our modified code.  We’re simply allowing a full second for the process to begin before timing out the publish feature.

I made that change and it has worked great for me.  I’ve had no issues.

And remember to always be sure to backup both your database and your files before updating WordPress to the newer versions.

230.
231.  $cron_url = get_option( 'siteurl' ) . '/wp-cron.php?doing_wp_cron';
232.  wp_remote_post( $cron_url, array('timeout' => 0.01, 'blocking' => false, 'sslverify' => apply_filters('https_local_ssl_verify', true)) );
      wp_remote_post( $cron_url, array('timeout' => 1, 'blocking' => false, 'sslverify' => apply_filters('https_local_ssl_verify', true)) );
233.  }
234.
235.  /**