If you have dynamic IP address then you can change it by:
1) Clear all cookies and cache file from your browser.
2)Go into command prompt ,type in "ipconfig/release" , then "ipconfig/renew" .
To goto command prompt Start->Run->type "Cmd" and Enter .
3)Either follow step 2 or Simply restart your modem/router .
Doing either step 2 or 3 will change your ip address,if you have dynamic Ip address.Visit
IP-Details.com to check if your IP address is changed or not.
If you have Static Ip address then contact your ISP and request a ip change.