常见问题 根据现象判断故障 无线类 (Troubleshooting wireless networking issue-联想乐享知识库

常见问题 根据现象判断故障 无线类 (Troubleshooting wireless networking issues - ThinkPad ) 问题:无线网卡 For the purpose of this guide the term Access Point is used for whatever wireless connectivity device is being used. This can be a wireless home gateway or an actual Access Point. Some of these steps may not apply to your computer. Test for network connectivity after performing each step. ThinkVantage Access Connections can help you get and stay connected by automatically managing your basic network connections using "Profiles" for any location (home office travel) for any network adapter (WLAN WWAN WAN Ethernet and Bluetooth wireless) and in any combination. Once your profiles are created getting connected is simply a matter of selecting a profile and letting Access Connections do the rest. Even when you move between a WLAN and a wired LAN Access Connections is smart enough to make the appropriate connection. Access Connections takes the hassle out of getting connected. Click here to download Access Connections. Verify that the network adapter is being seen by the operating system. Check Microsoft Windows Device Manager and look for an icon that appears as Network Adapters and see if the network card listed in Mini-PCI information table is installed: Right-click the My Computer icon and select Properties. Click the Hardware tab and press the Device Manager button. The network card should appear under Network Adapters.Note: If the card has a exclamation mark over a yellow background then this is an indication that the card is experiencing a problem. Go to Driver download step 5. Verify that the radio is enabled.It is possible to disable the transmitter of the wireless card without Device Manager showing any problems. Most wireless cards will put an icon in the system tray (the line of icons in the lower right corner of your screen). Right click this icon and it may have a menu option to enable/turn on the wireless radio. Check for association to an Access Point.If you double-click the previously mentioned system tray icon the configuration utility of the wireless card will appear. This utility will be able to show the status of the wireless card showing what channel the card is using and what signal strength is being received. It may be difficult to maintain a connection if signal strength is low due to either interference or distance. For example interference can be caused by 2.4GHz cordless phones other Access Points in the area and physical structures such as load bearing walls or metal partitions.Note: The utility can be used to configure the wireless card settings but if using Windows XP Zero Configuration or Access Connections you will need to use those programs to actually configure the wireless card as they will overwrite the setting of the utility. Check the SSID (the Network name of the wireless network you are trying to connect to) and security settings.Note: The SSID and WEP key are case sensitive. The connection will fail if the SSID is incorrect. The