Hello,
I just bought two TRB142s. One works perfectly, while the other fails to boot.
All 5 LEDs for the signal level blinking, and the RNDIS Ethernet interface is installed, but with "Network cable unplugged", and the device is not reachable .
I tried both TRB142 with the same power supply, antenna, SIM card and USB cable - the result is the same, one works great, the other does not.