That is a nice FAQ! I would add that (1) you only want one dhcp server on your network. So, for example, if you are trying to use 2 routers, you generally should disable dhcp on one of them. (2) On wireless networks, some people recommend disabling dhcp. That way, some laptop that wanders into range won't get assigned an IP address. (3) If you are going to have some fixed ip addresses while having others assigned dynamically via dhcp, the fixed ones should be outside the range that your dhcp server assigns. That way, you avoid a situation where dhcp assigns the same ip address as one of your fixed ips. For example, your dhcp might have assigned a pc the ip of 192.168.0.5. You then plug in a Netgear ME102 WAP, which has a default fixed ip of 192.168.0.5. So, 2 devices now have the same IP. To avoid this, change the ME102's fixed IP to something like 192.168.0.101.