Not sure if I am doing something incorrectly, but my new RRC3 will not 'Simulate' in USB-IO and mDACS on USB power alone. (It will Simulate from an external power source). I use a laptop, and have tried different USB ports, as well as a powered USB hub to no avail. I have followed the instructions to start a USB Host Mode using the RRC3 and USB-IO power source to the letter (except, of course, establishing the RRC3 Sim Connect in lieu of Host Connect). The TX & RX lights flash and I get the 'please Standby' notice, but then it remains in Connection Mode: 'Standby'. Advice?