Server not found after connecting vpn

I have tried following along with almost every tutorial I can find on how to set up a vpn in kali and mine never seems to work. I've been using vpnbook.com to download a vpn. I then go to my terminal and unzip it. After I do apt-get install on all the necessary packages, I do openvpn --config "vpnname.ovpn" which asks for a username and password which I get from the website. It says initialization sequence complete but when I open google I get a server not found error. When I try a different vpn that I downloaded from vpnbook occasionally the webpage loads fully but when I check my IP it hasn't changed. I am very new to Kali Linux and I appreciate your help.