G Sender Z axis losing 0 Mid carve

l have a longmill 48x30 with the touch screen computer installed with G Sender using the super long board. Everything works fine but the “Z” axis randomly plunges down through the project. I have checked my files while creating them but the issue continues at random, sometimes once during a carve, sometimes three times, most of the time at 3/4 through the carve. On the computer I have the screen saver off and all other timers off. Any recommendations

Thank you

@DavidLDick Welcome to the group, David. Are you connecting with ethernet or USB? If USB, have you turned off all the power saving settings related to the USB ports?

USB port. I’m not sure where the controls for the USB ports are located on this touch screen computer but I will attempt to locate them now and turn them off also. Thank you

@DavidLDick If the touch screen is running windows 10 or 11, you will find what you are looking for in control panel/power settings.

To be clear, I am not saying that this is the definitive solution to your issue. It is just one thing to look into. Another thing to try will be to run the offending file in air.