Quote Originally Posted by adam814 View Post
Most routers (at least the last few I've used) will let you "reserve" an IP in the DHCP pool for specific MAC addresses. If yours has no such option it should at least have an option to disable DHCP (then you'd need to configure all your machines statically, but at least you'd have your server static).
Most routers use a range of ip address that are configured for dhcp. addresses outside this range need to be configured statically.

I have a linksys router that has an option: Starting IP address: 192.168.1.[100]
This means I can statically assign my server to be an address under 100.

See my above post on how to assign a static address from the server.