I can't connect laser to lightburn

[LaserWillie (Willy)]

I’d search old threads and see which issue it is. Mac’s are an issue it seems.

Neje 3 MAX can't get to work with Lightburn

Which driver exactly did you install? You list a Macbook Pro in your profile. Is this what you are using to connect to the Neje 3? Have you updated the system and grbl firmware for your laser? I don’t know if they make this available from Mac however. Can you take a screenshot of your Mac System Report → Hardware → USB as well as a full screenshot of LightBurn while trying to connect?