Enabling access to XML-RPC
Public access to the XML-RPC file on our servers is blocked by default, because the file is a common target for hackers. You can now easily enable access to it from the WordPress section:
1. Open the Manage WordPress installations subsection.
2. Find the WordPress installation in the list and click on the Edit icon for it. This will take you to the management page for the WordPress installation.
3. Scroll down to the Tools label, and locate the option called Enable access to XML-RPC.
4. Click the Enable button.
This is it - you can now successfully install the Jetpack plugin, or connect to WordPress with your mobile device.