recaptcha verification failture

I am using the rails ambethia-recaptcha gem

My recaptcha verification fails in production, the same code works just fine in development. I made sure the public and private keys are correct and the correct keys load in the production enviornment. My production server hostname is "server" (this is kinda test production basically a server in my home network running passenger on xubuntu) and I generated the keys are recaptcha with that name. Where do I even begin to troubleshoot this?

In config.yml