Flush the ARP cache in Windows Bill Detwiler shows you how to clear a specific entry from the ARP cache and how to flush the whole thing. Once you’ve watched this TR Dojo video, you can find a link to the original TechRepublic article and print the tip from our <a href="http://www.techrepublic.com/blog/itdojo/flush-the-arp-cache-in-windows-from-the-command-line/2647">TR Dojo Blog</a>.