If you've tried a simple reboot of your system and disconnecting and reconnecting the headset with no resolution, take a look at the recommendations below. These are great, especially if you're in a cubicle or expo type environment!
Do you have a strong WiFi connection? We recommend a minimum of 10 Mbps download speeds for best results.
Are you casting to multiple screens? Cast to as few screens as possible for best results. For example: turn off your laptop screen if you're also casting to a TV.
Is your play space well defined? If you're in an area with bland walls and few features for VR to track, try taping Xs to the wall(s) or placing objects strategically around the room.
Low lighting? The tracking cameras require adequate lighting to track accurately. Make sure it is bright enough to see clearly.
Is there a lot of background movement? It is good to ensure the primary direction the user is facing has little to no background traffic or movement that may confuse the system tracking. This includes things like people walking by constantly, a busy carpet or rug, or other items that may make it hard for the headset to keep its tracking points.
Is your computer plugged in? If you are using a tethered headset, make sure the laptop or desktop computer you're using is plugged into a power source. If the computer is not plugged in or the battery is low, this can cause shakiness in VR.