Teach you to understand the failure of the network card

【Introduction】
When we use network cards, we often encounter various problems. Here I will summarize various errors and hope to help everyone.

When we use network cards, we often encounter various problems. Here I will summarize various errors and hope to help everyone.

Reasons and solutions:

Because most computers are unable to ping, the problem that the firewall is turned on by the ping computer is ruled out, which is generally caused by incorrect driver installation. After selecting the correct driver to install, you can eliminate the fault.

Failure phenomenon:

The error "Cannot find RTL8139.SYS file" appears when installing the network card under Windows 98.

Reasons and solutions:

When installing the network card to specify the driver search path, you should not select "Search floppy disk drive", but select "Specify location", and then enter the floppy drive information path information of the Win98 driver in the text box next to it or find it through the "Browse" button. Path, insert the drive floppy disk presented with the network card into the floppy drive, and then click "OK" to complete the installation. Generally, there are multiple system driver directories on the network card driver disk, which need to be specified manually.

Failure phenomenon:

There is a problem installing the TF-3239D network card of TP-LINK under Windows XP. After booting, the system automatically searches for the network card and installs the driver automatically, but in the device manager, I see a "!" On this device. The property prompts "Data is invalid, the device cannot be used." Check the interruption of network card occupation, I / O address, etc. have not found any conflict with other devices. Changing these parameters multiple times has no effect.

Reasons and solutions:

The TP-LINK TF-3239D network card uses the RealTek 8139 chip, and the driver for this chip is included in the Windows XP system. Therefore, in most cases, the system will automatically recognize and install the network card. The occurrence of the above phenomenon is a recognition error caused by a problem with the system's own driver, which can be solved by upgrading the driver with the Windows XP public version driver of the RealTek 8139 chip.

Failure phenomenon:

Install the network card on the Windows 2000 Professional workstation, you can see that the "Local Area Connection" icon in the lower right corner of the screen normally displays the information of the 100Mbps connection, but it can't ping other computers. Check that the settings such as IP address and mask are normal, and all the computers being pinged are in a VLAN.

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