A system for testing multiple cable modem/eMTA devices independently and simultaneously using different types of device probes is disclosed. The system employs multiple device probes configured to test various functions and connectivity associated with the device under test, including wireless local area network (WLAN), local area network (LAN), Multimedia Over Coax Alliance (MoCA), DOCSIS, and Foreign Exchange Station (FXS). The system includes real-time, bi-directional/asynchronous communication and interaction between the system components.