Today something new happened, I woke up and wanted to play VR. It worked fine yesterday with no problems, but now it can't detect the rift itself. I tried to start the full setup and it detected the two sensors, but not the rift. I have seen others had the same problem, but I have tried everything I could find with 0 luck.
Have you tried switching the USB port for the Rift headset? Both USB 3.0 and 2.0 can work. Are you on Nvidia? Please see this thread: https://forums.oculusvr.com/community/discussion/70097/nvidia-driver-not-rendering-to-headset-issue/p1