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How to flush DNS cache


The DNS (Domain Name System) cache is a temporary database that contains records of all your recent visits to websites (such as "RuneScape.com"). 

Erasing the DNS cache will remove any invalid records and allow your computer to find the correct address the next time you try connecting to the website. 

 
Flush DNS cache on Windows
  1. Open the start menu.
  2. Search for "cmd" and press 'Enter'.
  3. When the command prompt opens type the following three commands. Press 'Enter' after each new line:       
        ipconfig /flushdns        
        ipconfig /release
        ipconfig /renew
  1. Close this command prompt window.

 

 

Flush DNS cache on Mac 

The exact command required to flush your DNS cache on a Mac varies depending on your version of OSX. 

  1. Open terminal -  Applications > Utilities > Terminal, or Spotlight search 'Terminal' 
  2. Select your OS from the list below and enter the Terminal command
  3. Save and Close Terminal 

Select your OS

 Use the Terminal command:

OS X Yosemite v10.10.4 and El Capitan v10.11 

 
sudo killall -HUP mDNSResponder

OS X Yosemite v10.10 to v10.10.3

 
sudo discoveryutil mdnsflushcache

OS X Mavericks, Mountain Lion, and Lion

 
sudo killall -HUP mDNSResponder

Mac OS X Snow Leopard

 
sudo dscacheutil -flushcache

 

If this doesn't resolve your issues check out our solutions to common connection problems

 

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