How to Flush DNS

We have moved the websites to a new server.  If you encounter an issue, please try flushing the DNS first. 

For Windows: 

  1. In the taskbar search field, type : command
  2. Copy this command and paste it into the window that pops up: ipconfig /flushdns
  3. Press Enter
  4. You can close the command window when you get the success message
  5. Head back to app and test again. 

For Mac: 

  1. Run terminal.app using your preferred method. You can launch the app from Applications -> Utilities or press Command + Space to launch Spotlight and search for Terminal.
  2. Type in sudo killall -HUP mDNSResponder and hit Return on your keyboard.
  3. Enter the administrator password for the account in question and hit Return.
  4. There is no notification when the process finishes. However, you can append another command to change that. If you want to hear an audio notification after the DNS flush is complete, type say some text after the first command. For example: sudo killall -HUP mDNSResponder; say dns cleared successfully
Mac OS X or macOS version Terminal Command
Mojave (version 10.14) High Sierra (version 10.13) Sierra (version 10.12)

Mountain Lion (version 10.8)

Lion (version 10.7)

sudo killall -HUP mDNSResponder
El Capitan (version 10.11) Mavericks (version 10.9) sudo dscacheutil -flushcache sudo killall -HUP mDNSResponder
Yosemite (version 10.10) sudo discoveryutil mdnsflushcache sudo discoveryutil udnsflushcaches
Snow Leopard (version 10.6) Leopard (version 10.5) sudo dscacheutil -flushcache
Tiger (version 10.4) lookupd -flushcache