Here are the changes that I made for the serial 1 serial1=directserial realport:com1 irq:4 bytesize:8 stopbit:1 parity:E serial2=dummy serial3=disabled serial4=disabled This is the only changes that I made.

😕 I am trying to us doxbox to run a dos program to program a control panel for industrial equipment. I am using com:1. I can talk to the unit but the unit is not talking back to PC. The panel and the software is made by Lauer. Any help with this would be great.