Use a usb converter and check comport in windows and in program,
i think you used different comport once on laptop and now it changed in windows.
In Truckdoctor you can tap the wrench icon, Configuration, and set which comport to use, that has to be the same as in windows Device Manager.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.