Goggles are not working, “Driver not found (code:931)”
If the headset is not detected in the VIVE Business Streaming or VIVE Hub application and the message “Driver not found (code:931)” is displayed in red, the SteamVR application has most likely crashed and add-ons related to VIVE goggles have been disabled.

Go to menu “SETTINGS
” in SteamVR application and choose “MANAGE ADD-ONS
“:


Turn back on all the switched off add-ons and restart SteamVR:

If the problem still exists after performing this procedure, it is worth to restart a computer and a goggle.