Team Foundation Server is reporting that the test controller is online, however it is not reachable from this machine in ...

Team Foundation Server is reporting that the test controller is online, however it is not reachable from this machine in Microsoft Test Manager.  You may continue since this computer does not have to connect to the test controller, but you may want to verify that the test controller is indeed online.  Only the Team Foundation Server application tier needs to have connectivity with the test controller.  If the test controller is offline, then the test agents will not be able to be configured for this environment for test execution or network isolation.

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