I have one PC on the network that always joins my Archer A7 wifi network with a new MAC address. This causes problems because the parental controls I have setup for this PC do not recognize the new MAC addresses and I have to add the new MAC address of the PC each time it joins the network.

I have updated the network card driver, checked to make sure the option to "randomize Mac address" is turned off and it still shows up with a new MAC address each time the PC restarts and joins the wifi network.

The PC is a Lenovo Thinkpad laptop.

Any suggestions?