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Determine a Computer's IP Address

For Windows 2000/XP:

Open the command prompt
Type “ipconfig /all”, then Enter

If your “IP Address” starts with “128.193” and you are located on campus, then this is a valid IP.

If your “IP Address” starts with “169.” this means your computer has defaulted to an invalid IP address.

  1. Type “ipconfig /release”, then Enter
  2. Then type “ipconfig /renew”, then Enter (this can take a few minutes)

This prompts your computer to request a new IP from the server

Type “ipconfig /all”, then Enter to see if your IP address has refreshed to a valid campus IP (i.e. starts with “128.193”)

If this does not work, restarting your computer may fix the problem


For Windows 9x:

Click Start, Run

Type “winipcfg”, then Enter

A program will load that has your network info

You may have to click the pull-down box to select your Ethernet card; do not select PPP, VPN or Dial-Up Adapter

If your “IP Address” starts with “128.193” and you are located on campus, then this is a valid IP.

If your “IP Address” starts with “169” this means your computer has defaulted to an invalid IP address

If this does not work, restarting your computer may fix the problem.