1. Login to the EPS Console.
2. Go to Device Control settings page of the respective policy.
3. Enable Device Control.
4. Set "Block" permission to "Wireless > Wi-Fi".
5. Save Policy.
On settings "Block" permission to "Wireless > Wi-Fi" device type, access to USB network dongles as well as Wireless connections (Wi-Fi networks) will be blocked on the client system.
If you set "block if wired connection is available" permission to "Wireless > Wi-Fi", access to USB network dongles as well as Wireless connections (wi-Fi networks) will be blocked onli if wired or Ethernet connection is available to the system else users will be able to use them for network access.