@Incal well that's unfortunate. I'm going to get myself a ubiquiti edge router now and put this piece of junk deco into ap mode.

@bwbboot Yes this is poor design and should be enabled. If you are desperate for a workaround, reduce the Deco DHCP range to two address (might be able to do one), e.g. 192.168.1.253 - 192.168.1.254...