Possible to assign two test agents to one test controller for Test Impact?

Question

Hi,

We have two web servers that handle different parts of our web application. We have created a Physical environment with one local machine (client proxy) and one web server (collects test impact). This works fine. Now we would need to install a test agent to the second web server too so that we can collect test impact from it, so we do that and link both agents to the one test controller.

Now if we access the web page that makes requests to the first web server, no test impact is collected and we get errors in the attachments section, something relating to the fact that we did not access the page that the second webserver was collecting from and no impact was gathered. However, no impact is collected from the other page either.

So have we configured something wrong, or is it so that in a physical environment, it is not possible to link two agents to one controller?