For free internet you need to know which port in open in your state either UDP or TCP. If you know the port then accordingly you can use the port to connect any VPN and enjoy free internet.
Generally we do not know the port which is open in our state by this tutorial you will be able to find every port which is open in your state and for any network.
First of all you need to have PD-proxy VPN for this port finding.
If you do not have it then download it from HERE
Then you need to create a PD-proxy account, to sign up click HERE