Hello, Suddendly I have the same problem. Windows dettect the cable itself (appears in the device manager) but Rocksmith says that is not plugged. I've unninstalled drivers, I've plugged in different USB ports (2.0, 3,0, in front and in back), I've reinstalled Rocksmith.. but all without success :-( The cable works well because I've tested in other different computer with Rocksmith and is OK. The last possibulity is format the computer and install all windows again, but I'd like to solve it without all this work. Any help? Thanks in advance! :-)