I've solved this issue on the router-side instead of client-side.
I've an 11pc LAN network with static addresses: 192.168.0.10 to 192.168.0.20.
I've setted my d-link dsl500 router to assign dhcp range ip between 192.168.0.2 to 192.168.0.9, so if some laptop come in my lan it doesn't conflict with statics_ip_desktops.