MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Have you reset the printer and computer then tried again? You're not bugging anyone, it's just that taking a few minutes to wander through Google is likely to find you an answer first. Chances are someone somewhere had the same question.
Another search for the tronxy baud rate led me to this post
If it's an issue of EMI, you can print a case for the board and use metalized duct tape to line the outside and connect the tape coating to earth ground. If the cable is the issue, you'd have to go with a higher quality one that contains a metalized foil inside connected to earth ground. Your PSU and computer should both be plugged into grounded outlets. They sell testers for that kind of thing. Reading that post makes me think it's EMI, especially since it says connected but you don't get proper communication.