Remote support through mobile wifi? How to add Routes

You need to configure VPN so that traffic for 10.194.3.160 passes through the VPN. After you configure VPN, you don't need to add any routes manually, they will be added automatically by the VPN software. You can find more details about the available VPN options on https://openvpn.net Opens a new window (push "route x.x.x.x 255.255.255.0" and "iroute x.x.x.x 255.255.255.0" for OpenVPN). You need to do just about the same for your VPN software.