Not Getting a Heartbeat

Hi,

With the given information, I have no idea what’s going on on your site. I would suspect a plugin/theme conflict or disabling WP Cron or HTTP requests.

Apologies, here are more verbose details on the issue.

I have been running the plugin without significant issues for many months. The site has the following plugin’s installed:
*Block Lab
*Head & Footer Code
*Task Sceduler
*Task Scheduler – Hung Routine Cleaner

WP Version = 5.4.2
Timezone = -04:00 / UTC-4
Site is not using HTTPS

The theme is a modified TwentySevinteen stock theme, and the site has been stable for some time and is hosted on SiteGround.

Under general settings, the Universal and Local Times read correctly under Settings/General but under Task Scheduler/settings the ‘Status’ section does not list a ‘last Beat Time’

If I toggle the Server Heartbeat Off then back On, the Status > ‘Next Check:’ will update accordingly but no ‘Last Beat Time’ is ever updated. My guess is that the Heartbeat Check is failing, and consequently no scheduled tasks are ever triggered.

Your guess is most likely right. When the server heartbeat is called, it updates the last beat time.

First go to Tools -> Site Health and find the message “HTTP requests seem to be working as expected”. If you don’t find it, it is a problem.

If possible, I would create a test site and see if the Task Scheduler server heartbeat runs properly there.

Also, I would check a plugin/theme conflict by temporarily switching back to the default theme and deactivating all the other plugins except Task Scheduler. If the server heartbeat runs fine without other plugins and with the default theme, activate the other plugins one by one and see which one prevents it from running.

Let me know how it goes.