You must have your personal masterserver_nl.ovpn file and the IP address for the IP-KVM (usually you can find this information in the email containing your server access credentials);
After installing the VPN client, right-click on openvpn.exe and select Properties. Then, in the Compatibility tab, check the box "Run this program as an administrator";
Right-click on your personal masterserver_nl.ovpn file, then select Start OpenVPN on this config file;
Make sure the VPN client is running and working;
Wait 5 minutes;
Enter the IP address in your browser to connect to the IP-KVM and allow the connection without an SSL certificate;
After you finish working with the IP-KVM, disconnect the VPN client.
Connecting to IP-KVM from Mac OS
You must have your personal masterserver_nl.ovpn file and the IP address for the IP-KVM (usually you can find this information in the email containing your server access credentials);