If you get a "Communication Error" when connecting to a car, check your Interface Firmware . Diagbox 7.57 typically requires firmware version 4.3.2 . You can use the "PSA Interface Checker" tool (usually included on the VM desktop) to flash your hardware to the correct version.
If you are looking at the "Page 1 Full" version of this release, here is the standard workflow to get it running: 1. Prepare your Environment diagbox 702 plus 757 vmware mhh auto page 1 full
Most MHH Auto releases come as a .zip or .rar containing a .vmx file. If you get a "Communication Error" when connecting