Click the Start button and then click on Control Panel.
Click on Network and Internet
Click on Network and Sharing Center
Click on Change adapter settings
Click on Local Area Connection if your computer is connected via wired network or Wireless Network Connection if your computer is connected though a wireless network.
Uncheck the Internet Protocol Version 6 (TCP/IPv6)
Double Click on Internet Protocol Version 4 (TCP/IPv4)
In the General tab click on Use the following DNS server addresses.
Fill in the DNS servers from the table below
Flushing your DNS cache
Flushing the DNS cache on newer versions of Windows is almost as easy as on earlier versions of Windows, but due to Microsofts security additions you must run the command prompt with administrator privileges.
- Click the start button and navigate to the command prompt (Start > All Programs > Accessories > Command Prompt)
- Make sure that you right click on the command prompt application and choose “Run as Administrator”
- Type in the command
ipconfig /flushdns
Note: It is also possible to type in cmd into the Windows 7 start menu search field and then right click on the cmd.exe result instead of having to navigate through the various sub-menus.
You should also clear your browser cache. Here is a guide for the most popular browsers:
Clearing the DNS Cache on Browsers
The following table provides instructions for clearing the DNS cache on popular Internet browsers.
Go to the Tools menu, select Delete Browsing History, check all boxes (except passwords, if desired) and click Delete.
Go to the Tools menu, select Clear Recent History and check all boxes.Under Time range to clear select Everything (except passwords, if desired) and click Clear Now. Click the Cog Icon in the upper right corner and select Reset Safari.Check all boxes and click Reset. Click the Wrench Icon in the upper right corner and select History and check all boxes.Under Clear data for this time period, select Everything(except passwords, if desired) and click Clear Browsing Data. 