samething happen to me when use the previous version, but once i updated to the latest Asus version, it disappear now, still waiting for Merlin version.
i'm running AC87 as a main router and AC68 as a access point and they both running smooth without any problem, also i'm using Macbook Pro 13 retina too, 2 ipad, apple tv and 2 PC always on with 1 setup as a media server.
you lucky then cuz the bestbuy i went to, the model# must exactly match, also if i price match the item from Amazon, it must be "Ships from and sold by Amazon.com."
keep getting these error:
kernel: br0: received packet on vlan1 with own address as source address
kernel: * Make sure sizeof(struct sw_struct)=160 is consistent
kernel: sizeof forward param = 160
kernel: Stop the IPS/AppID engine...
anybody?