How to Renew IP & Flush DNS Cache Print

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Windows 8 & 10

  1. While on the desktop, press Windows Key + X.
  2. Select Command Prompt (Run as Administrator).
  3. Type ipconfig /release in the command prompt.
  4. Wait a few seconds for a reply that the IP address has been released.
  5. Type ipconfig /renew in the command prompt.
  6. Wait a few seconds for a reply that the IP address has been re-established.
  7. Type ipconfig /flushdns in the command prompt.
  8. Close the command prompt and attempt to make a connection.

Mac

  1. Open the Network Status menu: Apple menu > System Preferences > Network.
  2. Select the active connection from the Network Status menu and click Advanced.
  3. Click Renew DHCP Lease. This process may take a few minutes.
  4. Close the Network window.
  5. To flush the DNS cache, open the Terminal. (Go > Utilities > Terminal).
  6. For OS X 10.10.4 Yosemite, type in the following:  sudo killall -HUP mDNSResponder
  7. For OS X 10.10 Yosemite–OS X 10.10.3 Yosemite, type in the following: sudo discoveryutil mdnsflushcache
  8. For OS X 10.9 Mavericks and OS X 10.8 Mountain Lion, type in the following:  sudo killall -HUP mDNSResponder
  9. Reattempt the connection.

Other Mac OS's

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