“POST /wp-admin/admin-ajax.php HTTP/2.0” 404

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  • 404 means that the destination does not exist. If the URL (incl. domain) is actually correct, I would rather guess that the file is missing. Go to Updates in the backend and reinstall the core.

    If that doesn’t help, you can also try a manual update: https://www.ads-software.com/documentation/article/updating-wordpress/#manual-update

    If that doesn’t help either, a security tool (a firewall?) in your hosting might prohibit access.

    Thread Starter garrigan

    (@garrigan)

    The file does exist as demonstrated by the log entries with status “200”. The log entries show “200” until the last entry which shows “404” That “404” log entry is generated when I exit from the customize screen. I will be away from the Internet until Sunday afternoon (GMT – 4).

    The log is formatted in such a way that it is somewhat difficult to read here. You are welcome to use the code block next time: https://www.ads-software.com/support/forum-user-guide/block-editor/#code-block

    In the event of an incorrect request, the AJAX interface would respond with a 400. I don’t see a 404 at this point in WordPress. Depending on what was requested there, it could of course also be the return of a plugin you are using. Deactivate all plugins and use a standard theme (TwentyTwentyOne is the last classic theme with customizer support).

    Thread Starter garrigan

    (@garrigan)

    I had conducted a test without any installed plugins. The issue existed.

    I put the posted log file entries into a code block as shown below.

    The last entry has the 404 response.

    Oct 17 17:39:43 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:39:43 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 611 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:39:43 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:39:43 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 660 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:39:43 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:39:43 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 611 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:39:49 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:39:48 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 611 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:39:49 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:39:49 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 611 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:39:49 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:39:49 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 660 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:39:49 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:39:49 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 611 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:39:49 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:39:49 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 660 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:40:02 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:40:01 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 37 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:40:03 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:40:03 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 6104 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:40:07 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:40:07 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 37 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:40:11 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:40:11 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 138 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:40:24 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:40:24 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 200 155 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    Oct 17 17:40:33 vm_hostname nginx: 2001:xxx:xxxx:x:xxxx:xxxx:xxxx:c6cc – – [17/Oct/2024:17:40:33 -0400] “POST /wp-admin/admin-ajax.php HTTP/2.0” 404 67 https://staging.mydomain.com/wp-admin/customize.php “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0” “-” staging.mydomain.com “POST https://staging.mydomain.com/”
    • This reply was modified 1 day, 14 hours ago by garrigan.
    • This reply was modified 1 day, 14 hours ago by garrigan.
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