Distribution Server not installed, but it is?

So I'm trying to setup a client's server to be the Distribution Server for their local network. I've opened up all necessary ports, and used their public IP for the DS IP Column. Well, I have another cloud-based server running DesktopCentral, that is managing their server but for some reason it cannot contact it. I've gone through these steps with no luck:

Installed DesktopCentral on cloud-based host server, currently running
Opened the necessary ports on host server
Created a new Remote Office and Customer
Entered all information of client server correctly (IP, Domain, etc.)
Opened the necessary ports on client server
Downloaded and extracted Agent package to the client server, and ran the DS installer on it
Installation was successful, but back on host it still says "Distribution Server not installed"

Anything I'm doing wrong? I've opened up a plethora of ports, I've reinstalled, I've tried installing just the agent on the server, tried installing agents to PCs within the client server's network, etc. I just cannot figure out why they aren't communicating.