Cannot Add Scheduling Service

PROBLEM

In the Manage Virtual Users dialog, the Add Scheduling Service button does not connect to a remote scheduling service.

SOLUTION

As of 2013.1.806, the Add Scheduling Service dialog only looks for Scheduling Servers that are listening on port 8009. If your scheduling service is listening on a different port, you will need to change it to 8009 before you can add it to the load test.