Unable to connect to laser on macbook

I have a small hobby laser, It recently stopped working correctly so I bought a new control board (Doesbot GRBL 1.1 A4988). The X,Y worked initially but no laser. It then stopped connecting. Now Lightburn doesnt recognize the laser at all. I tried the find my laser tab and then tried adding the laser manually. I tried multiple USB and reinstalled LB.

I have read through all of the other posts with a similar issue but nothing has fixed the issue. I now have two not working boards so I’m wondering if its some setting in LB not recognizing the laser

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