Knowledge Base

This could be for a variety of reasons.

1. The most common fix is a simple reboot.
2. If that fails, try running the OpenVPN client as Administrator
3. If that fails, check your network interfaces for an interface of the type “TAP Windows Adapter V9”. Note its current name, and try changing this to tun0.

Step 1 or 2 typically fixes things. 3 is something we rarely have to try, and should only be attempted after trying 1 and 2.

Download and install the OpenVPN Connect client from

Launch the OpenVPN Connect app when it’s installed.

To set up a VPN connection, click the “plus” icon in the bottom-right of the app window.

You were either given a VPN address (url) or a configuration file.

If you were given an address, enter the url in the “url” field. and click “Next”. Follow the prompts, entering your assigned username and password.

If you were given a file, click “File” near the top-right of the app window. Drag and drop the file into the window, and click “Connect”. Use your assigned username and password.

Here’s our guide for data exports from PQ Sapphire.

Databones PQSapphire – PQZip Export Rev0

Often, the Fernhill SCADA client will be used offsite. In this case, you’ll need to have VPN access set up before you use Fernhill SCADA. You’ll also need to know the hostname or IP address of the Fernhill SCADA server, and your login username and password.

Download the latest client from their download page. On Windows, you probably want the Runtime version. You can also download for various device (iOS, Android) if you have devices with site access.

If you haven’t already, connect to the site via VPN.

Install and launch the client. You’ll be presented with the option to “Add Host”. Select this, and use the hostname or IP address of the SCADA server, and your login credentials. The client will remember the connection details for future sessions.

This could be a problem loading OpenGL on the Windows client PC.

Try changing the graphics mode. For example, running the operator interface from the command line:

“C:\Program Files\Fernhill Software\Fernhill SCADA\FHViewApp.exe” –GraphicMode=Direct3D

Or if that doesn’t work:

“C:\Program Files\Fernhill Software\Fernhill SCADA\FHViewApp.exe” –GraphicMode=GDI

The log files for the Operator Interface might contain more information about the LoadLibrary error. These can be found in:

C:\Users\AppData\Local\Fernhill Software\Fernhill SCADA\FHViewApp