You're assuming that he is clever enough to know the other devices on the network's mac address, and their ip addresses. The fact is, it's all logged and I do monitor it, so whilst I'm aware of how to change all that myself, I'm fairly certain he doesn't, and even if he did, he can't hide it from me. He would either put an ip in conflict since I set them all by dhcp via mac address, and if he didn't, it would be because that device is off, which i'd then know it shouldn't have been connected..
Doesn't matter, as I said, the parental controls, over the many version of Asus-wrt have periodically had broken parental controls, and been fixed several times in later releases.
I would really love to know why they keep breaking though.
For now, I will just disable the 2.4ghz radio at the appropriate times. Only my partners and my iphones and her ipad can use the 5ghz radio, he has nothing capable of it. Can't clone anything without a connection *shrugs*.
But yeah, it is really starting to put me off this Asus router, because it keeps breaking between firmware versions, for no apparent reason.