MacAir cannot find my laser

I bought a new Ortur Laser Master 2 Pro. I downloaded LightBurn. While in LightBurn, I asked to scan for connected devices. In the choose box it filled in “cu.usbmodem123451” and GRBL in the next box. Above the pause button it says disconnected. Under “Console” it reads “waiting for connection “. I have a 2011 MacBook Air that I just reset. It has a 1.7 GHz Intel Core i5 and 4 GB memory. It runs macOS High Sierra with the latest version I can upgrade to, 10.13.6. I hope I provided all the information needed to help me. If you feel this won’t work could you please give me an idea what I need in a computer to make this work for me. Thank you

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.