Start menu > Run > Cmd press Enter.
Comand prompt will open. Enter this code ipconfig /release
Press exit.
From Desktop click mouse right button Network places or My network places. Go to menu and click Propertish open New window , It,s name is Local area connection .
Local area connection > Right button click > Click Propertish > General Tab.
From list Double click Internet protocol (TCP/Ip).
Click use flowing ip adress .
Set your own Ip adress .
From key board press Tab button , Subnet mask box automatically fill up.
Click ok, ok and come out this option.
Click Local area option> Propertish> Again go to TCP/Ip setting.
Select obtain and Ip adders automatically.
Ok , Ok and go out .
Now you work with New Ip.