My Mach3 is not communicating with the cnc router.
Testing the parallel port, I get 3.4 volts on most of the pins on the 13 side without pressing any keys page up, down left ,right etc
On the 12 pin side I get no voltage at all ,even when I press the up down side to side X,Y,Z
This kind of tells me a setting is not right?
Should I be getting volts through the Parallel ports pins for ie, up- down - side to side ?
Thanks in advance for any help.

On my control panel for Mach 3
It shows the XYZ sending to the monitor.
I just need to find out why it’s not sending to the parallel port.
Please help

In Device Manager check the Address of your LPT Parallel Port and then check that is the address you have entered for Port#1 of Mach3 and that it is enabled.

In Device Manager check the Address of your LPT Parallel Port and then check that is the address you have entered for Port#1 of Mach3 and that it is enabled.

Looks like they match and enabled

Thanks

Perhaps try running a parallel port tester just to check that is working OK.
This or something similar; https://www.downtowndougbrown.com/2013/06/parallel-port-tester/

Thanks
I reinstalled Mach
And turned on 2 ports
And it works

Excellent