wp-cron.php Issues in WordPress: Fix and Optimize

What this problem is

Scheduled tasks do not run, or wp-cron triggers too often causing load and performance issues.

Why it happens

• wp-cron depends on site traffic to trigger
• Too many scheduled tasks from plugins
• Bots hitting wp-cron.php repeatedly

Prerequisites

• FTP access to edit wp-config.php
• Ability to create a real server cron job (hosting panel)

Diagnosis

Check whether missed schedules occur and review access logs for repeated hits to wp-cron.php.

Detailed steps

Step 1) Disable traffic-triggered wp-cron (recommended for stable servers)

define("DISABLE_WP_CRON", true);

Step 2) Create a real cron job

Configure the hosting cron to call WordPress cron regularly (example every 5 minutes):

https://example.com/wp-cron.php?doing_wp_cron=1

Step 3) Reduce excessive scheduled tasks

Audit plugins that schedule frequent jobs and reduce/disable unnecessary ones.

Expected results

• Scheduled tasks run reliably and cron requests stop overloading the site

What to do if it fails

• Re-enable default behavior temporarily and ask hosting to confirm cron execution and outbound access

Best practices

• Use real cron for production sites and keep scheduled tasks minimal