Let the computer correctly identify the wireless network card

Wireless Internet access to the "threshold" is getting lower, as long as the wireless network card and wireless access points on hand, it has the conditions of wireless Internet access. correctly installing and setting the parameters of the wireless network card is the prerequisite to ensure the efficient access to wireless networks, however, in the process of "intimate contact" with the wireless network, it is often encountered that the system does not recognize the wireless network card phenomenon, which will cause trouble in setting the parameters of wireless networks. If you are faced with a wireless network card is not recognized by the system, how to deal with it? If you don't have any ideas, take a look at the suggestions provided below.





1, Nic insertion is in place





at present, the main wireless network card PCI, USB, PCMCIA Three types of interface, regardless of which type, must be inserted in place to ensure that the network card with the computer slot or port close contact; If the insertion is not in place, it will cause the wireless network card can not be recognized by the system. Therefore, when you encounter a wireless card is not recognized by the fault, depending on the interface card type, check whether the network card is closely connected with the computer.





For example, for a wireless network card for a PCI interface, you need to check the computer motherboard PCI slot is "swollen" suspicion, if the PCI slot is "braces", the wireless network card even reluctantly inserted into the slot, will also be caused by the external vibration, resulting in wireless network card and PCI slot position deviation, Even the phenomenon of network card loosening. In this case, you'd better plug the wireless card into another PCI slot, and you must make sure that the "gold finger" of the wireless card is in close contact with the slot.





If you are using a USB interface wireless card, you'd better check to see if the wireless card is slipping from the USB port of the computer, or whether the wireless card has a downward tendency, if there is such a phenomenon, then the computer USB port and wireless network card, can not close contact. At this point, you can also reinsert the wireless network card by replacing the USB port of the computer; Of course, to avoid damaging the USB port on your computer, you can use a USB extension cord to connect the wireless network card and the computer.





Check that the PCMCIA interface's wireless card is plugged into place, you can pull the NIC from the PCMCIA slot first, and then forcibly inserted into the slot, if you can hear "click" a sound, it indicates that the wireless card has been inserted into place, or you will check the wireless network card connection head is experiencing physical damage. If so, the PCMCIA interface must be replaced. Nic driver, correct





if the driver for the wireless adapter is not properly installed, or if the driver of the wireless network card is damaged by a virus or other improper operation, then the computer system will not recognize it at times. Therefore, when you encounter a wireless card is not recognized, you had better check whether the original driver installed, or check the network card driver is the latest version; If you do not have the original driver, you'd better identify the specific model of the network card, and then according to the model, Search from the Web and download to the latest driver for the driver, and then reinstall the drivers. Of course, in order to ensure the accuracy of the installation, you'd better remove the old driver from the system before installing it, lest the new and old versions of the driver cause a resource conflict. After excluding the above factors, check the current driver, whether it applies to the operating system of the wireless network card, if not appropriate, must find the corresponding program to reinstall the operating system.





if the above method still does not solve the problem, you might as well adjust the network card driver installation sequence. For example, for PCMCIA interface, USB interface wireless card, you may wish to install the driver of the network card, after inserting the wireless network card, perhaps the NIC can be properly installed. Because many operating systems in the default state, will not automatically install the computer USB port, PCMCIA slot driver, then insert PCMCIA, USB Interface wireless network card, the system of course can not search, even if you later installed the driver, Nic is still in unrecognized state. Instead of installing the NIC driver first, it is possible to "activate" the computer's USB port, PCMCIA slot, so that the system can automatically recognize it when it is plugged into the NIC again.





2, USB port is enabled





When installing the USB interface wireless network card, if the computer's motherboard USB port is set up in advance to disable, no matter what measures you take, you can not let the wireless card is correctly recognized. Therefore, checking the motherboard USB port is "enabled" is one of the important measures to eliminate the USB wireless card can not be recognized. Under normal circumstances, restart the computer system, go to the CMOS parameter Settings page, check the "USB Controller" option to set the value, you can know whether the computer motherboard is enabled USB port, if this option is set to "enable" means that the computer USB port has been opened, If set to "Disable", it means that the USB port in the motherboard is not "activated" and you must reset the option to "enable" at this time. Of course, if your CMOS parameter Settings page does not have a "USB Controller" option, you can also enable the USB port on the motherboard only if you set this option to enable when the "Onchip USB" option is available.





In addition to the CMOS interface, you can see the motherboard's USB port state, you can also know in the Windows interface of the motherboard is turned on the USB function. Just open the System Device Manager window and check the device list for USB-related options, for example, in Windows 2000 systems, if the device list contains the Standard OPENHCD USB Host Controller Project, Indicates that the motherboard has USB port enabled, and that the motherboard USB feature is turned on on the Windows XP operating system if the "PCI to USB enhanced Host Controller" item is visible.





3, resource conflict exists





If you are using the PCI interface of the wireless card, then pay attention to whether the network card is a resource conflict phenomenon, if it exists, it will cause the system can not correctly identify the wireless network card. At this point, you may wish to open the System Device Manager window, to see the list of devices in the network card icon status, to see if the network card icon has a yellow question mark, if there is a yellow "?" or "!" , it means that the wireless card has a resource conflict with other devices, although the wireless network card driver installed correctly, but it will not be recognized by the system normal. Most of this is because of the interruption of conflict, at this time you can remove all the cards in the computer, only keep the video card and the wireless card, and then install other cards, so often can eliminate the interruption of wireless network card conflict phenomenon, so that the network card working status returned to normal.





of course, if there are too many PCI cards in the computer, can also cause wireless network card can not be recognized phenomenon; This is because PCI plug in, then the distance between each block card is relatively close, then they work, the resulting electromagnetic field is easy to interfere with each other, when the interference accumulated to a certain extent, The wireless card will not work properly, even can not be recognized. Therefore, before inserting a PCI wireless card, it is best to remove other temporarily unused cards, so as not to cause interference.





4, Plug and pull operation is standard





Although the PCMCIA, USB interface of the wireless network card support hot plug function, but if you do not pay attention to plug time, or do not pay attention to the insertion sequence, it will cause the system "transient" confusion, and can not identify the wireless network card. For example, after inserting a wireless network card, the system may take about 10 seconds to recognize and install it successfully, if you plug in the wireless card and then quickly pull out, then the system not only can not recognize the wireless network card, but also easy to cause the system to identify a brief confusion; the next time you plug in the wireless card, The system may not recognize the wireless card. Therefore, if the wireless network card can not be identified due to improper plug and pull, you may want to open the Device Manager window, check if there is an unknown device icon, and if so, right-click on it and execute the "Properties" command on the shortcut menu, and then select "Removable" in the following interface (only for Windows Me operating system, and then click OK and reboot the system to ensure that the system is back to normal recognition. If there are no unknown device icons or icons associated with the wireless network card in Device Manager, you can first unplug the wireless card directly from the computer PCMCIA, USB interface, and then restart the computer system to restore the normal ability to identify, and then gently plug the wireless card into the computer ( Try not to plug in the wireless network card during the system startup process or when processing large capacity data information, lest the system CPU can not reply in time.





for the removal of wireless network card operation, you had better install a certain sequence, otherwise it will cause wireless network card can not be recognized fault. The correct extraction sequence is, the first wireless network card lights stop flashing, then right click on the system tray area of the wireless card removal icon, execute the shortcut menu "Stop wireless network Card" command, and then in the pop-up "unplug or eject Hardware" window, select the wireless network card device, and click the "Stop" button, Wait until the system prompts you to successfully remove the wireless card, and then unplug the wireless card from the computer port.





5, self-check whether qualified





If the above measures can not allow the system to identify the wireless network card, then you need to check the wireless card itself, for example, the network card itself is the quality of the problem, the wireless network card USB port, PCMCIA interface is frequently inserted after the phenomenon of damage. If you find that the network card has its own problems, then the only solution is to use a good quality, stable performance of the wireless network card to replace.