How to Fix a DNS Server Error

By Jason Gabriel

Domain Name System (DNS) is a vital part of the Internet's workings. Eachwebsite address connects to a domain name; for example, are both domain names. IP addresses are actually what we areconnecting to on the Internet. DNS was created in order to make webpages easier to access, with each server IP address assigned a domain name. A DNS error occurs when one cannot access the IP address that corresponds with the domain name entered in an Internet browser.

Things You'll Need

  • Windows XP or Vista
  • Internet Explorer

Step 1

Clear your Internet browser's browsing history and cookies. In InternetExplorer, start by clicking on "Tools" (in the menu at the top-left of thebrowser) and navigate to "Internet Options". This will open the "InternetOptions" window.

Step 2

Click on the "General" tab. Look for "Browsing History; click on the "Delete"button. This will open up a new window. Click "Delete Files", "Delete Cookies", and "Delete history".

Step 3

Clear your DNS cache. Start by entering the "Start" menu and clicking on"Run". In the "Run" menu, type in "cmd" (without the quotation marks), and click"OK". This will open the "Command Prompt" window.

Step 4

Switch to the "Command Prompt" window and type in "ipconfig /flushdns" (minusthe quotation marks), and then press Enter on your keyboard. Wait for theprocess to complete, and then close the "Command Prompt" window.

Step 5

Create an exception in your Windows firewall. Start by opening the "ControlPanels" window via the "Start" menu. When it is open, navigate to "WindowsSecurity Center".

Step 6

Click on "Windows Firewall". If you receive a message that the firewall is notcurrently in use, skip the rest of this article. Otherwise, a window dealingwith the firewall will open.

Step 7

Click on the "Exceptions" tab, then click on "Add Program". This will open upa browser window. In this window will be listed many programs. Find InternetExplorer (sometimes listed as "iexplore"); select it and click "OK". Then click"OK" again to exit out of the firewall settings window.

Step 8

Contact your ISP if the above steps do not resolve the problem.

References & Resources