Error Setting Jetpack

Saya mengalami kendala saat setting Jetpack. Setelah diactivate dan ketika klik “connect to wordpress” muncul komen error berikut :
“Jetpack could not contact WordPress.com: register_http_request_failed. This usually means something is incorrectly configured on your web host.
Operation timed out after 15000 milliseconds with 0 bytes received”

Bagaimana solusinya kira-kira?