jetpack will not load after latest update load blog validation failed

[secondprinciple]

{"8":{"name":"testconnection_token_health","label":false,"short_description":"Blog token validation failed.","long_description":"<p>A healthy connection ensures Jetpack essential services are provided to your WordPress site, such as Stats and Site Security.<\/p><p><span class=\"dashicons fail\"><span class=\"screen-reader-text\">Error<\/span><\/span> Blog token validation failed.<\/p><p><strong>We recommend reconnecting Jetpack.<\/strong><\/p>","severity":"critical","action":"https:\/\/thesecondprinciple.com\/wp-admin\/admin.php?page=jetpack#\/reconnect","action_label":"Reconnect Jetpack now","show_in_site_health":true,"pass":false,"group":default?,"type":"direct"}}

[jagdishkori]

The page examplesite.com/xmlrpc.php must return the following message:

XML-RPC server accepts POST requests only.

Instead it returned a 404 “Not Found” error for this page.

because WordPress was not installed in the root directory. Moving the installation fixed everything, returning the correct message:

XML-RPC server accepts POST requests only.

[hellofromTonya]

Hello @secondprinciple,

Welcome to WordPress Core Trac! Thanks for the ticket.

I'm sorry that you're having difficulties with Jetpack.

Please note that this Trac is used for enhancements and bug reporting for the WordPress Core software itself, not for individual support questions.

Where can you get help?

Please contact the plugin author. For WooCommerce, you could start with their ​support forum. Otherwise, you could use the WordPress support forums: ​https://wordpress.org/support/forums/.