In Windows 7 & 8
- Press Windows key + R. (It will open the Run dialogue.)
- Type “cmd” and press Enter.(It will open a command prompt.)
- Type “ipconfig /flushdns” and press Enter.
- Type “ipconfig /registerdns” and press Enter.
- Type “ipconfig /release” and press Enter.
- Type “ipconfig /renew” and press Enter.
- Type “netsh winsock reset” and press Enter.
- Restart the computer.
In Windows XP and Vista
- Goto Start > All Programs > Accessories > Command Prompt.
- Type the command prompt: ipconfig /flushdns
- If the command was successful, you will see the message, “DNS Resolver Cache Successfully Flushed.”
Note : Run cmd in Administrator Privilage, else you will get a message says “Action Requires Elevation”
In MAC OS X
- In the searchlight in the upper right-hand corner, type Terminal and press Enter.
- In the Terminal window, type: dscacheutil -flushcache
- Press Enter again and the DNS cache should be flushed.