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Currently I am developing a USB MIDI interface. Recently I ran into a problem with this interface. Windows 10 is able to install all the correct drivers and MIDI in/out is detected correctly. But when I tried to communicate with the interface I can't send any MIDI message.

MIDI-OX cannot connect:

enter image description here

It worked previously until I messed around with some USB key in Windows10 registers. I have used USBdeview to remove the USB device and start from zero, but it didn't work.

DeviceManager:

enter image description here

What is happening with it? Any idea for debbuging this problem?

M123
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adrengineer
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  • What board is this? What did you change in the registry? Can you use something like USBTrace to see if the underlying USB device is getting opened? – Brad Nov 06 '21 at 20:52
  • Thanks for the input. I didn't know about USBTrace. I will take a look at it. I think it may help. – adrengineer Nov 23 '21 at 12:19

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