Is the one that is not detected spinning and emitting IR light? Does the green LED look dimmer than the other one? Unplugging the power then and replugging should get a base station working again even if it is asleep. You might try disabling power management if the problem. Hovering over them gives the message "base station not detected. " and finally everything would be good for a while, until the next drop. Sometimes it happens once an hour, sometimes it happens every 5 minutes. Without the sync cable, one should be set to b and. I am having this repetitive issue as of late with one of my base stations in particular where it keeps switching from the standard green light to blue and will flash back and forth eventually causing the other base station to have a purple light. Within a couple minutes of starting up steamVR my base stations gray out and become unusable until I unplug them and plug them back it. I set the letter to A but when StreamVR.
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