NIC failure will lead to unstable network connection, and even break the network, which brings great inconvenience to everyone browsing the Internet. The following system family Xiaobian will analyze the common network card failure causes and solutions for everyone. : When the network card is working properly, the indicator of the network card is long (and will flash quickly when data is transmitted). If it is dark and clear, and the network connection is always unreasonable, the most likely cause is the bad connection between the network card and the PCI slot. Like other PCI devices, when you frequently plug in a network card or move a computer, it is easy to cause such a fault. Re-plugging the network card or plugging it into another PCI slot can solve it. In addition, dust, network card & "gold finger" is severely oxidized, network cable connectors (such as crystal head damage) can also cause such failures. Just clean up the dust and use the newspaper to polish the “golden finger”. Like other hardware, the network card is not perfect and can easily cause malfunctions. For example, the network card of Realtek RTL8469 chip, NetBIOS TCP/IP error often occurs under Windows 2000. Will drive the update, such problems will be solved. Therefore, when there are some unexplained failures in the network card, you can go to the professional website update driver such as “Drive Home” (www.mydrivers.com) to solve the problem. (Recommended to use the driver with Microsoft WHQL certification. The compatibility of the driver with the Windows system is the best). Generally, in the premise of eliminating hardware and network failures, upgrading or reinstalling the driver can solve many inexplicable failures. If the NIC failure occurs after the driver update, you can use the NIC's own driver to recover. IRQ interrupts cause failures Now PCI card supports plug and play, and IRQ (interrupt) resources are automatically allocated when the driver is installed. If the predetermined IRQ resource is occupied by a device such as a sound card, a modem, or a video card, and the system cannot re-designate another IRQ resource for the network card, a device conflict may occur, resulting in a problem that the device cannot be used. For example, Realtek RT8029 PCI Ethernet NIC is easy to conflict with the display card (all use IRQ10). The solution is very simple. We can look up the description of the priority of the PCI slot in the motherboard manual and replace the conflicting device with the PCI slot with higher priority (generally, the PCI plug is closer to the AGP slot). The slot, the higher the priority level, and swapped until the two conflicting devices no longer conflict. This method is simple, but it is relatively complicated. In addition, we can manually re-allocate the IRQ value for the network card in the device properties of the network card: Step 1: Press Ctrl+Pause to open the “System Properties” and click “& Hardware” & Rarr; Device Management & rdquo; Open Device Manager. Step 2: In the Device Manager, expand <;Network Adapter", double-click the NIC device to open the device properties of the NIC, and select “interrupt request in the <quo;Resources> tab> ”, then cancel the “Use automatic settings” checkbox. Step 3: Click the “Change Settings” button to re-assign an IRQ value to the NIC until the “Conflict Device List” is displayed as “No Conflicts”. This article is from [System Home] www. Xp85.com