Several common faults of NIC

Network card failure will lead to instability, or even break the net, for everyone to browse the Internet to bring great inconvenience, the following small series for everyone to analyze the common network card failure reasons and solutions:

When the NIC is working properly, the LEDs on the network card are long lit (and flicker quickly when the data is transmitted). If there is a dark time and the network connection is always out of reach, the most likely cause is a bad connection between the NIC and the PCI slot. As with other PCI devices, frequently unplug the network card or mobile computer, it is easy to cause such a failure, reseat the network card or plug in to other PCI slots can be resolved. In addition, more dust, network card "Goldfinger" is severely oxidized, cable connectors (such as crystal Head damage) will also cause such failures. Just clean up the dust and use the newspaper to polish the "golden finger" to solve it.

Nic and other hardware, as well as the driver is not perfect and easy to cause trouble, such as the use of Realtek RTL8469 chip network card, in Windows 2000 will often appear NetBIOS TCP/IP errors. Will drive the update, such problems will be solved. Therefore, when the NIC appears some unexplained fault, you can go to the "Drive Home" (www.mydrivers.com) and other professional web site update drive to solve (recommend you to use the first Microsoft WHQL certified driver, through this certified driver and Windows System compatibility is the best )。 Generally in the removal of hardware, network failure premise, upgrade or reload drive can solve a lot of inexplicable faults. If the network card failure occurs after the driver update, you can use the network card with the driver to recover.

IRQ Interrupts cause failure

Now that both PCI cards support Plug and Play, IRQ (interrupt) Resources are automatically assigned when drivers are installed. If the scheduled IRQ resource is occupied by a sound card, Modem, video card, and so on, and the system cannot reassign additional IRQ resources to the NIC, a device conflict will occur, causing the device to not use the problem. such as Realtek RT8029 PCI Ethernet network card is easy and display card conflict (all use IRQ10). The workaround is simple, and we can look for a description of the PCI slot priority section in the motherboard specification. Replace conflicting devices with higher priority PCI slots (in general, the higher the priority level of PCI slots closer to the AGP slot) and swap until the conflicting devices are no longer conflicting. This method is simple, but relatively complex. In addition, we can also manually reassign the IRQ value for the NIC in the device properties of the NIC:

The first step: Press Ctrl+pause Shortcut to open System Properties, and then click hardware → device management to open Device Manager.

Step two: In Device Manager, expand Network adapters, double-click the device properties for the network card device to open the NIC, and on the Resources tab, in the Resource Settings list, select Interrupt request, and then cancel the Use automatic settings check box.

Step Three: Click the Change Settings button to reassign an IRQ value to the NIC until the conflicting device list appears as "No conflict"