You have finished the creation of the network restriction GPO.
But, you still need to enable the use of your new Group Policy.
On the Group policy management screen, you need to right-click the Organizational Unit desired and select the option to link an existent GPO.
In our example, we are going to link the group policy named WIFI NETWORK RESTRICTION to the root of our domain named TECH.LOCAL.
After applying the GPO you need to wait for 10 or 20 minutes.
During this time the GPO will be replicated to other domain controllers that you might have.
After waiting 20 minutes, you should reboot a user's computer.
During the boot, the computer will get and apply a copy of the new group policy.
To test the configuration, while connected to the cabled network, you should try to connect to a wireless network.
Your computer should automatically block the new connection.
To test the configuration, remove the cable from the network interface and try to connect to a wireless network.
This time, your computer should authorize the new wireless connection.