Primus Fitting Unit (PFU) is displayed as Not connected

Primus Fitting Unit (PFU) is displayed as Not connected

The status bar in Primus when device is Not connected:

  1. Reconnect a USB cable and power supply

  1. Try another USB port on the computer

  1. Try another USB cable

  1. If connection is via hub/switch, connect directly to the computer

  1. Check that the unit is displayed in Windows Device Manager under Sound devices

  1. Additionally, the USB view program can be used to check if the device is visible by Windows. Download 

  2. Compare serial number of the device with Primus serial number

  1. Check antivirus and Firewall, if they are not blocking Primus

Primus does not support Windows RT 

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