Quick fix
Make sure each base station has power and a steady light, is mounted solidly above head height, faces the centre of the play area with nothing in the way, and has its protective film removed. Then restart SteamVR and rerun Room Setup.
What it means
Valve Index and HTC Vive headsets and controllers are tracked by base stations (also called Lighthouses) that sweep the room with invisible light. If a base station has no power, is wobbling, is blocked, or clashes with another base station, SteamVR stops seeing it and your controllers or view can drift, float or freeze.
Common causes
- A base station with no power or a loose power cable
- Vibration or a wobbly mount, shown by a flashing blue light
- Base stations not aimed at the play area, or blocked by furniture or people
- Windows, mirrors, TVs or monitors reflecting the tracking light
- Two base stations set to the same channel
- Mixing 1.0 and 2.0 base stations, or using 2.0 base stations with an original Vive
- Leftover shipping film, outdated firmware or an old Room Setup
How to fix it
Work down the list. Each fix is safe to try before moving on to the next.
01Check power and the status lightEasy
- Make sure each base station is plugged into a working wall outlet and its light is on.
- No light means no power. Plug your other base station into the same outlet to see whether the outlet or the base station is at fault.
- Valve Index (2.0) base stations: flashing blue means it is not stable or is vibrating, and flashing red means an error that needs Steam Support.
- HTC Vive (1.0) base stations: green is normal, dim green means standby, blue means it is still waiting to stabilize, purple means the base stations are trying to sync, and blinking purple means syncing is blocked.
Why it helps: The status light tells you whether the problem is power, vibration, syncing or a fault.
02Remove the protective filmEasy
- Look closely at the curved front of each base station.
- Peel off any thin plastic film or sticker left from the packaging.
- Restart SteamVR and check tracking again.
Why it helps: Valve notes that the shipping film can interfere with tracking if it is left on.
03Mount the base stations solidly and aim them correctlyEasy
- Place the base stations in opposite corners of the play area, facing the centre.
- Valve's ideal setup: above head height (at least 2 metres / 6.5 feet), angled down 30-45 degrees, and no more than 5 metres / 16 feet apart.
- Use a wall mount, tripod or sturdy shelf that does not shake when people walk, doors close or speakers play.
- If a base station sits low, such as on a table, tilt it slightly upward instead of down.
- Once tracking works, avoid moving or bumping the base stations.
Why it helps: Vibration stops the base station's laser from working, and poor aim leaves gaps where devices are not seen.
04Keep a clear line of sightEasy
- Stand in the middle of the play area and check you can see every base station.
- Move furniture, plants, fans or ceiling decorations that block the view between the base stations and the play area.
- Keep other people and pets out of the play area while you play.
Why it helps: Base stations can only track what they can see, and they also need to see each other in some setups.
05Cover reflective surfacesEasy
- Look for windows, mirrors, glass doors, TVs and monitor screens in the play area.
- Close curtains or blinds and cover mirrors or screens with a cloth.
- Test again; if controllers stop floating away, uncover items one at a time to find the culprit.
Why it helps: Shiny surfaces bounce the tracking light and confuse SteamVR about where your devices are.
06Restart SteamVR and rerun Room SetupEasy
- Close SteamVR completely and open it again.
- In the SteamVR status window, open the menu and select
Room Setup. - Follow the steps to set the floor, the front direction and the play area.
- Rerun Room Setup any time you move a base station or change the room.
Why it helps: A fresh Room Setup clears problems caused by changes in the room or base station positions.
07Fix base station channelsMedium
- Valve Index (2.0) base stations: in the SteamVR status window, open the menu and select
Devices > Base Station Settings > Configure Base Station Channels. - Wait for SteamVR to find nearby base stations, then select
Automatic Configurationor click each channel to change it so no two match. - HTC Vive (1.0) base stations without a sync cable: use the channel button on the back to set one to
band the other toc. - HTC Vive (1.0) with the optional sync cable: set one to
Aand the other tob. - Remember that 1.0 (HTC) and 2.0 (Valve) base stations cannot be mixed in one setup, and 2.0 base stations do not work with the original Vive headset or wand controllers.
Why it helps: Channel conflicts and mixed base station versions stop SteamVR from tracking correctly; SteamVR shows a Base Station Setup Error when it finds a conflict.
08Update base station firmware in SteamVRAdvanced
- Open SteamVR on the PC with the headset connected.
- Open the menu and select
Devices > Bluetooth Settings > Enable Bluetooth. If SteamVR offersUpdate Bluetooth Driver, install it, restart the PC and open SteamVR again. - If a base station icon shows an alert, hover over it to see whether the firmware is out of date.
- Select
Devices > Update Devicefrom the SteamVR menu (or selectUpdate Devicefrom the alert), choose the base stations and follow the on-screen steps. - Warning: do not unplug the base station power cable until the update is complete, or it may end up with a firmware error.
Why it helps: SteamVR delivers base station firmware fixes, and an out-of-date base station can track badly.
09Check that the problem is not performanceAdvanced
- In SteamVR, open the menu and select
Developer > Advanced frame timing. - Play for a minute and look for large spikes in the graph.
- If you see spikes, lower in-game graphics settings, update your graphics driver and close background apps.
- Also run Steam's general checks: in Steam
Library, right-click SteamVR, selectProperties, then theInstalled Filestab (calledLocal Filesin older Steam versions), and verify the files.
Why it helps: Valve notes that lag and stutter from a struggling PC can look like tracking loss.
Check it's fixed
- Each base station shows a solid green icon in the SteamVR status window.
- Controllers stay still in VR when you put them down on a table.
- You can walk the whole play area without the view freezing or jumping.
When to get help
If a Valve Index base station flashes red, or a base station will not power on from a known-good outlet, contact Steam Support (Index) or HTC Vive support, as the unit may need repair or replacement.
Questions
Why is my base station blinking blue?
On a Valve Index (2.0) base station, flashing blue means it is not stable or is vibrating, which stops the laser. On an HTC Vive (1.0) base station, blue means it is still waiting to stabilize. Mount it on something solid that does not shake.
Can I mix HTC Vive and Valve Index base stations?
No. Valve says 1.0 (HTC-branded) and 2.0 (Valve-branded) base stations do not work together in the same setup. The Index headset works with either type, but the original Vive headset and wand controllers do not work with 2.0 base stations.
How many base stations do I need?
Valve recommends two for most room-scale play areas. One can work for seated or standing play, and areas larger than about 5 by 5 metres may benefit from more.
Why do my controllers float away or drift?
Drifting usually comes from tracking problems such as reflective surfaces, blocked line of sight or a shaking base station. Cover mirrors and windows, check the mounts and rerun Room Setup.
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