ESS upgrade problem

Upgrading an older machine from parallel port to ethernet SS. Got everything hooked up and so far as I know the 'puter is talking to the SS board. I can toggle the e stop led on and off in mach (3).

Not getting any movement out of any of the axis.

DRO in mach will go up and down as commanded by keyboard but no movement at the steppers.

The led lights next to the pins on the SS do not change state while attempting to move and of the axis.

The leds on the SS all come on when powering up the SS without connected to mach. Once Mach is running they go out.

Any ideas?

Thanks!