Poor router security RBR750 or firmware (V3.2.16.22_1.4.9)

Followed up on adding reserved IP address mapping over to mac address and Access Control:

1) I think I was wrong to comment that granting IP address to a device causing the device not to be able to block.  The layer 2 (same subnet) blocking should be via mac address.  Thus technically Netgear's explanation should be validate although layer 2 traffic should be blocked by mac ACL blacklist.

But the issue now verified should be both RBR/BRS do not block the mac address on the layer 2 level in the blacklist.  Only RBR blocks the IP or mac address going out to WAN on the layer 3 level.

2) I managed to add all allowed devices into the DHCP IP reservation list.  And then set the starting IP and ending IP the same.  And such IP address is already in the IP reservation list thus causing unreservated device not able to obtain the IP address from the router.