How to Clear the Windows DNS Cache

The Windows DNS Resolver will cache DNS lookups on your computer for the Time-To-Live period (TTL).  If you change your DNS, there will be a lag, causing the DNS resolver to continue using the old IP address, before it resolves the new IP.

You can force a change by entering a PowerShell or Command window, as Administrator.

  • Launch the shell using CTRL-SHIFT-ENTER.  This will enter Adminsitrator mode.
  • Enter the following command:

> ipconfig /flushdns



That’s it.


Karim Sultan
My vision is for digital innovation across the divide, by securing and simplifying the Internet and extending its reach to every citizen on Earth and beyond.

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