Please help me with this issue guys

I have three ips 12.0.0.1 on ether 2,16.0.0.1 on ether 3 and 17.0.0.1 on ether 4 all set to static.i disabled dhcp client and dhcp server and added a route too .12.0.0.1 and 17.0.0.1 detect static but 16.0.0.1 detects both static and dynamic how and what should i do to correct this

Are you sure you removed all dhcp clients/server? Did you reboot after removing?