Hi MattCan -
Originally are you trying to setup a Networked Swarm setup? And if so what originally are you using as your host PC for the Coordinator? Normally you should not need to set this up at all if you are building only using one PC. Agent will always attempt to start Coordinator to see if their is a rendering network, but that should not keep you from building lights on a single machine which it will default back to if no network is found.
Let me know -
Eric Ketchum