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Office of Information Technology (OIT)

UT Arlington
OIT: Office of Information Technology ·  Work Order · 817-272-2208 · System Status

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ResNet - Windows OS

Check the Network Card

  1. Click on the Start button, choose Settings, and then select Control Panel.
  2. Double-click the System icon, select the Hardware tab and then choose the Device Manager button.
  3. Double-click on Network Adapters, you should see the name of your network card listed in the drop down box.
  4. If your network card is not listed, or if there is a yellow or red mark next to it, the card is either not installed properly or is not working.


Setup DHCP

In order to make changes to your Network Configuration you must be logged on to the local machine as Administrator

  1. In order to connect to the UT Arlington network using Windows XP Professional your settings should appear as follows:
  2. Click on Start, select Settings, and then choose Network and Dialup connections.
  3. From the Network and Dialup connections screen, double-click on Local Area Connection.
  4. Click on the Properties button.
  5. Your installed network adapter should be listed under Connect Using.
  6. Double-click Internet Protocol (TCP/IP) and then select Obtain IP address automatically and Obtain DNS server address automatically.
  7. Click on the Advanced Button.  The IP Settings tab should be set to DHCP enabled.
  8. On the DNS tab, select the following check boxes:
    • Append primary and connection DNS specific suffixes.
    • Append parent suffixes of the primary DNS suffix.
    • Register this connection's addresses in DNS.
  9. On the WINS tab, select the following check boxes:
    • Enable LMHOSTS lookup.
    • Use NetBIOS setting from the DHCP server.
  10. Go to the Options tab, and double-click IP security.
    • Make sure Do not use IPSEC is selected.
    • Click OK, and then double-click on TCP/IP Filtering.
    • Make sure on this screen that Enable TCP/IP Filtering is NOT checked and Permit all is selected in all three columns. Click OK.
  11. Hit OK two more times and reboot your computer.  When you log back on, you should be connected to the network.

Obtaining a Valid IP Address

If your settings are correct and you are still not able to connect you may have been assigned an invalid IP address.  In order to get a renewed IP address follow this procedure:
  1. Click on your Start button and select Run.  In the Open field type command, and click OK.
  2. A black window with a flashing cursor will appear.  At the prompt type ipconfig, and hit <enter>.
  3. Find the IP address, a valid ResNet address will start with 42.x.x.x.  If your IP address is 169.x.x.x or is all zeros then your hardware may not be installed correctly or functioning properly.  If your IP address is 192.168.x.x or 10.x.x.x then you are on a local area network and/or behind a router/firewall.
  4. Type ipconfig/release to clear the address, and then type ipconfig/renew to get a new IP address. 

Testing the Connection

  1. Select Start, and choose Run.  Then type command in the resulting field, and hit <enter>.
  2. This will take you to a black screen with a flashing cursor.  This is your command prompt.
  3. Type ping
    • If the connection is active, the ping command will yield four lines of replies.
    • If it is not active, the ping command will yield a "timed out" or another similar error message.
    • If you can ping the web server or other IP addresses but are not able to surf the Internet, then the problem probably exists with the browser application.

Troubleshooting Windows XP Professional

  1. Turn off Power Management settings for the network adapter (if applicable)
    • From the Start menu, click on Settings, and then select Control Panel.
    • Double-click the System icon, select the Hardware tab, and then click the Device Manager button.
    • Double-click Network Adapters, and double-click the name of your network card to get to the properties.
    • Go to the Power Management tab, and deselect the box that says Allow the computer to turn off this device to save power.
    • Click on OK, then OK again, and reboot the computer.
    • When you log back on, you should be connected to the network.
  2. Uninstall/Reinstall your network card (You may need a copy of your network card's device driver for this to work)
    • From the Start menu, click Settings, and then select Control Panel.
    • Double-click the System icon, select the Hardware tab, and then click the Device Manager button.
    • Double-click Network Adapters, and find your network card.
    • Right-click on the icon for your network card, and choose Uninstall.
    • You will be warned that you are about to remove a device.  Click OK, and then close this window. You will now need to shut down your computer.
    • If you are not familiar with your computer or are uncomfortable taking it apart, proceed to the next step to do a partial reinstall.
      • With the computer shut down, physically remove the network card, then reboot the computer.  After Windows has fully loaded, shut down the computer again.  Now reinstall the actual card, and restart the computer.
    • Windows should automatically find the new card and ask you to choose a driver.  Use the driver that was provided by the manufacturer.
    • Now that the card is reinstalled go back and check that it is working properly and that the network settings are correct.
    • Randomly deleting adapters found in your network profile can cause serious problems.  You will have to know which ones you need and which ones you don't need.  Because network adapters are specific for each individual computer, OIT will not offer any advice or suggestions as to which to remove or how to remove them.  Proceed at your own risk and liability.  If you see instances of a network adapter such as AOL Dial-up Adapter #1, AOL Dial-up Adapter #2, etc. removing them may clear up potential conflicts while setting up your DHCP connection.