I have a TS2 Twotrees Lightburn which does not connect via USB with Lightburn on my Desktop PC:
Processor Intel(R) Core™ i9-10980XE CPU @ 3.00GHz 3.00 GHz
Installed RAM 64.0 GB (63.7 GB usable)
Windows 11 Professional Version 23H2
Graphics card: RTX 3090
On the other hand, I can connect via USB, with the same cable, to the same TS2, Lightburn on my laptop:
Processor Intel(R) Core™ i7-8750H CPU @ 2.20GHz 2.20 GHz
Installed RAM 16.0 GB (15.8 GB usable)
Windows 11 Professional Edition
Version 23H2
Graphics card: Nvidia GTX 1060
I tried with different USB ports on my desktop PC, nothing works, no connection?
Both computers have the CH drivers?
Also i am assuimng you tried both frotn and back usb ports?
on the I9, when plugging USB, do you get any response from computer
right click Windows menu → Device manager
Plug usb and see if any device apears as driverless?
As Lightburn did not detect, or did not find my TS2 on my desktop PC (I9), I observed what was happening during the USB connection of the burner in the device manager, and I saw it appear in the COM and LTP ports, a new USB Serial CH340 in COM10.
Then, on Lightburn I selected the COM10 connection port, and miraculously it worked.