Support » Fixing WordPress » Background Updates Not Working and Loopback Request not Completed

  • ACS



    I have looked through the forum and can see others with similar issues but wanted to post in case my error experiences are potentially different.

    I have 4 sites that are all showing ‘Background Updates Not Working and Loopback Request Not Completed’ as errors in the site health check. I have installed the Health Check plugin which turned on the 2020 theme and disabled all plugins, but the notices still exist.

    I have received emails that automatic updates have applied to the sites this morning, specifically to 5.3.3, one has updated automatically to 5.4.1 as it was updated manually to 5.3.3 yesterday. The site at 5.4.1 is also showing the same errors.

    I am trying to work out if this is just a red herring in the site health check? Also am I wrong to question if background updates are reportedly not working, how the sites can automatically update?

    Any help would be appreciated as others with similar issues are being suggested to that it could be server config or htaccess rule errors and I need to understand if these need attention in my situation and if so, what to do specifically?

    Many thanks,


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  • It usually helps if you can provide the URL of the site in question. That way anyone trying to help you can inspect the site themselves. For this instance, I would check to see if I could access either of these files directly:


    As your WordPress site needs to connect back to itself at those files. And when it cannot connect back to itself at those files, you will see loopback warnings like that.

    If it reports loopback warnings like that sporadically, also make sure that you are not disabling the WordPress cron in the site’s wp-config.php file with one or both of the following defines:

    define('DISABLE_WP_CRON', true);
    define('WP_CRON_LOCK_TIMEOUT', 120);

    Editing wp-config.php

    Also, sometimes caching and/or security implementations can cause those errors. So if you are doing any of those, whether by plugin, host, or at the server level, they may need to be cleared and possibly inspected as well.

    Thread Starter ACS


    Hi Thomas,

    Thank you for your reply, and apologies for not including the link.

    The URL is this:

    I am new to this more technical side of WordPress and do not have access to the backend so I am trying to help those who do, to help me sort it out.

    I will forward your reply and see if that helps point them in the right direction.

Viewing 2 replies - 1 through 2 (of 2 total)
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