====== Troubleshooting FARO USB Digitizer Connection Problems ======

**For Rhino 3.0/4.0**

If you are having trouble getting Rhino 3.0 or Rhino 4.0 SR9 connected to your FARO USB arm, please follow these steps:

  - Close Rhino.
  - Turn off the FARO arm.
  - Unplug the FARO arm from your computer.
  - From the **Start** menu, click **Control Panel**.
  - Double-click **Add and Remove Programs**.
  - Select **FARO Arm USB Driver** and click **Remove**. Fully remove the FARO USB Driver. Be sure all copies of the FARO USB Driver are removed.
  - Restart your computer.
  - Select your Rhino version:
    * Rhino 3.0, download the [[http://download.mcneel.com/download.asp?id=farousb|Rhino 3.0 FARO USB drivers]].
    * Rhino 4.0, download the [[http://download.mcneel.com/download.asp?id=farousbV4|Rhino 4.0 FARO USB drivers]].
    * Or for Rhino 4.0, you can download the latest USB drivers from [[http://www.faro.com/site/support|FARO]]. Or try this direct [[http://na5.salesforce.com/_ui/selfservice/pkb/PublicKnowledgeSolution/d?orgId=00D10000000009v&lang=1&id=50170000000IaRR&retURL=%2Fsol%2Fpublic%2Fsolutionbrowser.jsp%3Fsearch%3DWhere%2Bcan%2BI%2Bdownload%2Bthe%2BLatest%2BFaroArm%2BUSB%2BDriver%26cid%3D000000000000000%26orgId%3D00D10000000009v%26lang%3D1%26t%3D4&ps=1|link]].
  - Install the FARO USB drivers you just downloaded.
  - Restart your computer.
  - Connect the FARO USB cable to your computer.
  - Turn on the FARO USB arm.
  - The **Windows New Hardware Wizard** will run. Follow the steps on the screen to install the driver.
  - When the wizard completes successfully, start Rhino.
  - From the Tools menu, click **3D Digitizer**, then click **Connect**.
  - At the **Select Digitizer** prompt, click the **Digitizer** option.
  - At the **Digitizer** prompt, click **FARO USB Digitizer**.
  - Follow the instructions to connect your digitizer.

** Verify that you have the latest [[http://download.rhino3d.com/Rhino/4.0/sr/download/|Rhino 4 SR9]]. **

===== Problem =====
=== Symptom ===
At step **13** above, when you plug in the USB and power on the arm, **Windows New Hardware Wizard** does not run. If you look at **Windows Device Manager**, FARO is listed as an unknown device and the **Update Device** option also fails.
=== Solution ===
  - Download the latest USB drivers from [[http://www.faro.com/site/support|FARO]]. Or try this direct [[http://na5.salesforce.com/_ui/selfservice/pkb/PublicKnowledgeSolution/d?orgId=00D10000000009v&lang=1&id=50170000000IaRR&retURL=%2Fsol%2Fpublic%2Fsolutionbrowser.jsp%3Fsearch%3DWhere%2Bcan%2BI%2Bdownload%2Bthe%2BLatest%2BFaroArm%2BUSB%2BDriver%26cid%3D000000000000000%26orgId%3D00D10000000009v%26lang%3D1%26t%3D4&ps=1|link]].