DHCP can be setup in lan settings
ip for your router is 192.168.0.1
http://setuprouter.com/router/hitron-technologies/bvw-3653/manual-135.pdf page 41 for dhcp settings
here u can also change your lan IP adress (192.168.0.xxx is default)
change it to something else 0-255 possible numbers
once u disable dhcp and change your router IP, then go to your windows network settings, open adapters, right click on your wifi adapter and select properties
here click on protocol ipv4 and click on properties switch to u"use following ip adress:"
on ip write your router IP (lets say your router ip is now 100.200.100.200) and change last number to any random number like 100.200.100.155
than click on subnet mask, it should auto fill
than click on gateway, here write exact router IP number
dns u can keep on auto