I have a Google Nexus 5, running 6.0.1.
I'm trying to figure out how to reconnect to the network I'm on through the Google Wi-Fi Assistant VPN.
Today is the first time I ever used it, because I got a notification for it. I went through the steps to turn it on and it worked great. I then got curious, wondering if I could get around the WebSense blocks (security crap) at work by using the Wi-Fi Assistant VPN.
To do this I had to turn the Wi-Fi Assistant VPN off for a moment. After I tested to see that using the VPN does indeed allow me to get around the security block, I can't seem to get it to use the VPN again.
I go into Settings -> Google -> Networking -> Enable Wi-Fi Assistant, but I never get the question in the notification area asking if I wanted to allow Wi-Fi assistant to connect through the VPN.
So now I'm connected to my network like normal, but it's missing the key icon and it does not say Connected, via Wi-Fi assistant.
Is there a way I can manually do this?
Update: The Google VPN was not working because the network is password protected, rather than an open network. I'm not sure what caused the VPN to connect when I initially enabled it. The answer below describes how to reconnect to an open network to start using the Google VPN.