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How To Flush The DNS Cache In Windows

How To Flush The DNS Cache In WIndows

If you’re having trouble viewing certain webpages, or you can no longer resolve names through your web browser, you may have corrupt entries in your DNS cache. DNS is a service which helps to find destinations on the internet, through a series of host names and addresses.

If you’ve recently changed DNS settings, or even changed ISP’s, flushing your DNS could be the missing step that allows you to browse again.

Flushing Your DNS Cache In Windows

Begin by closing any open Web Browsers and Programs.

Open up your command prompt. From Windows 7 or earlier, just search for ‘cmd’ from the start button to find cmd.exe and then run the application. If you’re using Windows 8, just type ‘cmd’ from the start screen to locate command prompt in the universal search.

In the prompt, type ‘ipconfig /flushdns’, and then press the enter key.

You will see a message confirming that the cache has been cleared.

You can now try web browsing again, DNS queries will now be fresh, and you should be able to access the internet as normal.

How To Disable DNS Caching In Windows

Sometimes we can run in to problems on our PC with the DNS resolver. What this usually means is that you are unable to view webpages through your browser and you’re constantly needing to flush the DNS Cache. If you’re having this issue, there’s a way to stop DNS caching so that Windows will directly query your DNS server rather than pulling a cached entry. To disable your DNS Caching, just follow the steps below.

Disabling DNS Caching In Windows

Open up your command prompt. From Windows 7 or earlier, just search for ‘cmd’ from the start button to find cmd.exe and then run the application. If you’re using Windows 8, just type ‘cmd’ from the start screen to locate command prompt in the universal search.

In the prompt, type ‘net stop dnscache’ and then press enter on your keyboard.

DNS caching will now be disabled until next time you reboot your PC.

How To Flush The DNS Cache In Mac OS X

Problems with your DNS cache can prevent you from being able to view certain web pages, or in some cases, any webpages at all. Flushing the cache will force your computer to make new queries when you start browsing again, fixing any problems with corrupt or incorrect entries in your cache. To clear the Cache on your Apple computer, just read on below.

Flush DNS in Mac OS X Lion

Close any open applications.

Open up the terminal, and then in the prompt, type ‘dscacheutil –flushcache’ and then hit enter.

The cache is now cleared and you can try browsing again.

Flush DNS in Mac OS X Tiger

Follow the steps as above, but typing the command ‘lookupd –flushcache’ in to the terminal instead.

How To Disable or Enable A Network Adapter In Windows

Sometimes when your LAN or Wireless adapter stops working in windows, all that’s needed to kick it back in to life is simply disabling and re-enabling the adapter. This is especially effective when you’re using a computer that often drops internet access due to compatibility problems.

From your start button in Windows 7 or earlier, or your start screen in windows 8, open up the Control Panel.

In the Control Panel, set the view to ‘small icons’ and then click on ‘Network and Sharing Center’.

Now on the left hand panel, click on ‘Change adapter settings’. You will then see all of your adapters on screen.

Right click on the adapter you are troubleshooting, and then click ‘disable’.

Wait around 30 seconds before right clicking on the adapter again, and then select ‘enable’.

Check if the adapter is now connected and try accessing the internet again..

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