are all the terminals configured in the system setup?
Have you configured dealer to operate with the proper first port on octal card/rocket port
Are you using rocket port or octal?
Do they stop on loading prog page 0 or are they getting to another set and stopping
Do they go silent right away or do they flicker between booting/loading/checking then to silent
Is the host and adapter lights on in the convertor panel?
Is the convertor panel in bypass
Are you using dedicated power (orange sockets, nothing non-squirrel plugged in them)
lot's of stuff that could go wrong along the way
Best bet if you are 100% certain the wiring is all correct, check the dealer configuration and make sure use com port 0 is set to Y (if octal card) or that starting com port is 10 (rocket port)
And make sure the terminals are setup in