Requesting New IP Address

Flush DNS and request a new IP address from your ISP server by following these steps.

Click Start
Click run
In the run box type cmd.exe and click OK
When the command prompt opens type the following. ENTER after each new line.
ipconfig /flushdns
ipconfig /release
ipconfig /renew
exit


Read more: http://www.techmynd.com/how-to-flush-dns-get-new-dynamic-ip/#ixzz26G3Wg6n6