A corrupt or error-prone local DNS cache may trouble you while browsing a particular web site or server . The only option to overcome this problem is to clear your local DNS cache for the operating systems.
For Windows vista and Windows7 :
Following are the steps need to consider for the purpose
- Click on Start then click All programs
- Click on Accessories
- Choose Run as Administrator by right clicking on Command Prompt
- Type the following in the command prompt window
message will flash as “Successfully flushed the DNS Resolver Cache”.