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[2018-06-15 12:40:59.866] API running in IP access mode on port 4048 (25)
[2018-06-15 12:41:00.771] failed usb_init
FPGA/ASIC detects it fine, but CGMiner ... not.
If you installed the silabs driver to make it work that stops it working with cgminer and you'd have to uninstall it to use cgminer which would stop it working with bfgminer (used in the FPGA/ASIC window)