Errors with Enphase Envoy

I am attempting to set up the integration between my Enphase Envoy Solar System and Home Assistant. Both are on the same network so there are no firewalls in-between potentially blocking communication. My Enphase Gateway is on Firmware D7.3.120. Knowing that I am running version 7 or above, the documentation says to use envoy for the password and click the Use Enlighten Button. I do that but get a Unexpected Error immediately. I then enter the last 6 digits of my device serial as the password and same thing, Unexpected Error. Not sure how I can troubleshoot this