Minomushi

I think I have the same problem. I also have 3 trackers, tried all of the steps written in the previous message + instructions in the link at the bottom, and I found that one of the tracker usb dongle is the source of the problem. I've contacted HTC, but they say that I would have to send back the unit (instead of replacing) even though I bought it in March, been in touch with them from beggining of April, and the thing never worked since I opened the package. I am willing to pay for another tracker+dongle pair, or for just the dongle, but at the moment, I'm out of options. https://www.reddit.com/r/Vive/comments/67jaqd/how_to_pair_3_extra_trackers/