Parental controls not work on AX20.  Wheneven I enable the it, Internet are stopped for ALL devices on the network.  It says "You're not allowed to surf the net during this time.  You can get back online when Bed Time is over.  I've tried putting the device in a Parental Control Profile specifying 7x24 internet access, not setting the internet access period or removing the device from the profile, the device still can't access the Internet.  So I can only disable the Parental Control feature for now.