We have just bought a number of these devices and would like to know how to secure the connection to the device. There is an option in the menus for an "Access Control" function but is seems not to do anything. There is also mention in the help of the option to restrict via IP, but this doesn't appear in the menu, although there is a blank unlabelled radio button in there.
So, what's to stop someone connecting to the device and accessing it? Surely there is a way to secure access to the device?
Thank you.