Carnegie Mellon University


Fairfax, Neville and Webster Hall have Comcast internet service. See the Troubleshooting Guide help.


  1. Select Run.
  2. Type cmd into the Search box. Press Enter.
  3. Type getmac/v at the prompt. Press Enter.
  4. Your computer's Ethernet and wireless addresses are listed as the Physical Addresses.
    • Wired - Ethernet Adapter Local Area Connection
    • Wireless - Ethernet Adapter Wireless Network Connection
  5. Note these and then type exit.


  1. Select Apple menu > System Preferences.
  2. Select View > Network.
  3. Select your Ethernet connection and click Advanced
  4. Click Hardware
  5. Note the string next to MAC address.

Follow the steps below to locate your wireless card and driver information.

  1. Click Start > Control Panel.
  2. Under Network and Sharing Center, click Change Adapter Settings.
  3. Select the applicable network adapter (depending on whether you are having an issue on wireless or wired network).
  4. Right-click on the wired or wireless option and select Properties.
  5. Click Configure > Driver and gather the following information:
    • Adapter Name (including make/model numbers)
    • Driver Provider
    • Driver Date
    • Driver Version

Consider the following:

  • New wired network registrations may take 15-30 minutes to fully activate. Wait at least 30 minutes from the time of registration and then try accessing the Internet again.
  • Your web browser or network application's name and address have old information saved. Quit and relaunch your web browser or network application.
  • Your operating system's network name and address have old information saved. Reboot your computer and then relaunch your web browser.
  • Your web browser cache has old information saved. Clear your web browser cache. See the browser help for steps.
  1. Select Start > Check for Updates.
  2. Once complete, visit the web site for your computer vendor (e.g., Dell, IBM, etc.) and download the latest network driver for your computer.
  3. Drivers can typically be found in the Support area of the site.