Yes I did it both ways just to be sure. "Then I connected both adapters via coax cable from Moca port to Moca port and the Moca lights stay on."

Since the Moca light comes on I assume the adapter is still funtioning properly. Is there a next step?

Ok . I connected the main adapter connected to the modem via coax from tv port to 2nd adapter (no ethernet cable connected). The Moca light illuminated on both adapters but the light on 2nd adapter stops illuminating after about 30 seconds. Then I connected both adapters via coax cable from Moca port to Moca port and the Moca lights stay on. Did I do this correctly? If so, what is the next step?