I just created a new Build server and added it to an existing Queue, I turned off the other agents in the queue so that this new build server would get the job. I sent a very simple .NET build but the build window says "Waiting for an available agent"
So I get it, I must have missed installing something on the build server. So when the job is submitted it's looking for an agent that can satisfy the "capabilities" How can I see that what capabilities the job needs so I can see why it's stuck?