We tried to connect to the server at the specified address, but no server responded. This can happen if the server is behind a firewall, if access is restricted to certain IP address, or if the server is offline.
Make sure that the server is online and publicly accessible to external requests. If access to the server is restricted to certain IPs, you can learn more about the IP ranges Zencoder uses.
Jobs with this error can be retried. Learn more about retrying jobs.