Jetpack gives 404 Error

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I would suggest contacting your hosting provider and explaining that we are unable to access your blog via cURL, which is needed in order to use Jetpack on your site.

You can let them know we tested the following:

1. Check for access to xmlrpc.php via browser:
https://ghoststorm.co.uk/xmlrpc.php

That test returned “XML-RPC server accepts POST requests only.” which is a valid result.

2. Check for access via cURL by running the following command from the command prompt:
curl -A "Jetpack by WordPress.com" -is -H 'Content-Type: text/xml' --data '<?xml version="1.0"?><methodCall><methodName>demo.sayHello</methodName><params></params></methodCall>' 'https://ghoststorm.co.uk/xmlrpc.php' && echo

The cURL test returned the following invalid result:

curl -A "Jetpack by WordPress.com" -is -H 'Content-Type: text/xml' --data '<?xml version="1.0"?><methodCall><methodName>demo.sayHello</methodName><params></params></methodCall>' 'https://ghoststorm.co.uk/xmlrpc.php' && echo
HTTP/1.1 404 Not Found
X-Powered-By: PHP/5.4.45
Expires: Wed, 11 Jan 1984 05:00:00 GMT
Cache-Control: no-cache, must-revalidate, max-age=0
Pragma: no-cache
Link: <https://ghoststorm.co.uk/wp-json/>; rel="https://api.w.org/"
Vary: Accept-Encoding,User-Agent
Content-Type: text/html; charset=UTF-8
Server:  - Web acceleration by https://www.unixy.net/varnish
X-Cacheable: YES
Content-Length: 17478
Accept-Ranges: bytes
Date: Fri, 15 Jan 2016 18:08:48 GMT
X-Varnish: 544047683
Via: 1.1 varnish
Connection: keep-alive
age: 0
X-Cache: MISS

Please provide the information above to your hosting provider so that they can correct the server settings to allow cURL access.

I hope this helps.

I also had the same problem before. but now I have been coping with how to edit .htaccess file and add the following code after the code after the code “# END WordPress”

<Files xmlrpc.php>
Order Deny,Allow
Allow from all
</Files>

Thanks @john, your codes worked for me…