Trying to connect to a DMC using laptop. Switched to RS485, have orange cable but getting “No Response From Device.” Tried communicating though power unit in MR and CLC board in COP. There is a second car at this job that is running and can’t establish comms with that DMC either. First time using this orange cable ( from SEES) & laptop, so not sure if equipment is bad but can’t communicate with either DMC.