I am trying to install a second build agent for Team City 6.5. The default build agent that gets installed with TC shows up and is usable. However, when I install a build agent on another machine, using the windows installer provided from TC, I do not see the agent. I was, at one point, able to see the additional build agent in the disconnected tab. There were some issues with having port 9090 open on the specific ip address, so I thought I would "remove" the agent from TC and see if that helped reset things. Now the agent does not appear. I've tried reinstalling the additional build agent, but it still does not appear. I do not see how to undo the Remove build agent from TC.
Is there a way to get a "removed" agent to be visible again?