Laser not connecting to my NEJE Master 2 20W

My lightburn does not connect to my NEJE Master 2 20W laser. The com port (USB-Serial) is working fine. Any ideas. I see GRBL in the devices but does not find my laser.

Patrick, I’m having the same problem as you describe.

Jay, It turned out to be the power supply not fitting correctly in the power outlet. If it is Ok there should be a boot up light sequence on the mother board and the top red led will stay on. I thought this was OK initially because the fan on the laser used to spin randomly, but this was due to the poor connection. The company are sending me a 2 pin to 3 pin adaptor. All sorted and lasering away.

Message from the vendor:
Please download the latest 5.5 software
https://wiki.nejetool.com/doku.php?id=nejelaser_master_2#focus

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