When using WordPress on a Heroku website, you may need to take some extra steps so Jetpack can connect. If you experience any problem, please customize httpd.conf to allow for more concurrent connections, allowing communication between your server and WordPress.com:
# # Allow more concurrent connections per dyno # ServerLimit 8 MaxClients 8
Please check this commit for an example.
Still need help?
Please contact support. We’re happy to advise.
Jetpack 