Contents 7Checking Your Wireless Network Card. . . . . . . 77Setting Up a New WLAN Using a WirelessRouter and a Broadband Modem. . . . . . . . . . 78Connecting to a WLAN . . . . . . . . . . . . . . . 79Enabling/Disabling the Wireless NetworkCard . . . . . . . . . . . . . . . . . . . . . . . . . 81Mobile Broadband/Wireless Wide AreaNetwork (WWAN) . . . . . . . . . . . . . . . . . 82What You Need to Establish a MobileBroadband Network Connection . . . . . . . . . . 82Checking Your Dell Mobile Broadband Card . . . . 83Microsoft® Windows® Firewall . . . . . . . . . . . . 8310 Securing Your Computer . . . . . . . . . . . . . 85Security Cable Lock . . . . . . . . . . . . . . . . . . . 85Passwords . . . . . . . . . . . . . . . . . . . . . . . . 85Computer Tracking Software . . . . . . . . . . . . . . 86If Your Computer Is Lost or Stolen . . . . . . . . . . . . 8611 Adding and Replacing Parts . . . . . . . . . . 89Before You Begin . . . . . . . . . . . . . . . . . . . . 89Recommended Tools . . . . . . . . . . . . . . . . 89Turning Off Your Computer . . . . . . . . . . . . . 89Before Working Inside Your Computer . . . . . . . 90Optical Drive . . . . . . . . . . . . . . . . . . . . . . . 92Hard Drive . . . . . . . . . . . . . . . . . . . . . . . . 92Returning a Hard Drive to Dell . . . . . . . . . . . 94
