Proper Load Testing Config?

I have recently set up load tests to run on a remote environment. It worked fine for a time, and then suddenly stopped working for no reason discernible to me. My set up is this - Scheduling server on Box A, execution server on Box A, an execution server on Box B. The problem here is that when I attempt to run the load test, I get impossible values (0 to ~100 ms for 200 virtual users for traffic that I know take 500ms or more for one user from my experience). I tried to submit a support ticket, but all I got was a Server 404 error, both through the Test Studio application and the website. Have I set this up correctly? It worked for a time with this setup, then just stopped. I can see the server where I want to run the test as "alive," but when I execute the test remotely, I get bad data back.

Thanks in advance