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What is the procedure to renew the IP Address of a computer?


Renewing the IP address of your computer is required after any change to the router’s local IP Address information. Additionally, this is a common troubleshooting step when connection issues occur between your computer and your router.


Win XP:

  1. Click Start
  2. Click Run
  3. Type “cmd” into the Run prompt that opens up

Win Vista/7

  1. Click Start
  2. Type “cmd” in the Search Programs and Files field, then press enter
A black window will appear on your screen.  Type the following commands pressing enter after each (note: there is a space before the /)
  • ipconfig /release
  • ipconfig /renew


Mac OS X:

  • Press the Apple Icon in the upper left-hand corner and select System Preferences
  • In the System Preferences window select Network
  • In the left hand, column select your connection (Ethernet for wired or AirPort/WiFi for wireless) and then press the advanced button in the bottom right-hand side of the window
  • Select the TCP/IP tab and the press “Renew DHCP Lease” button

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