Tip: WDM Setup is from the perspective of this computer.

1. Set up mix: Set Mix 15 & 16 to be a matrix (i.e. a mix of mixer outputs), then send MASTER to this mix.
2. Set up Digital Patching: Send Mix 15 & 16 to USB 63 & 64
3. WDM Setup: Assign USB 63 & 64 to input slots WDM 1 and WDM 2 of the WDM audio device.

NOTE: OBS Studio may not immediately pick up WDM device changes: Open the “Audio device > Properties dialog” in OBS, this seems to trigger recent audio device changes to apply.

• Other direction

1. check Presonus Hardware Service is running
2. check Device Manager has missing drivers

C:\Program Files\PreSonus\Universal Control\Drivers\StudioLive3\x64\

1. check VPN is stopped: Tailscale / Wireguard / ZeroTier