After setting up Mach3 on my new cnc (ports, units, Limits, motors, etc.), the 3 motors are dead but the DRO’s and E-stop are the only items working. I have power on the 3 KL-4030 drivers (36VDC), the light is ON on the BOB C-10 but pressing the keyboard arrow keys only the DRO’s are moving.

Can someone point me to what items need to be checked first?

The ENABLE jumper gets some folks with the C10.

I have the Enable jumper installed

I would next verify that the port is configured and is functioning correctly.

How do I do that? When Mach3 starts I noticed it says "driver successfully installed" or something similar. Is that enough?