The uncommon faults of the network in the win xp system are solved together

An abnormality in the network may have become the number one headache. Some common network problems can be solved, but if these exceptions are too special, I think many people are helpless. Now I will give it to everyone. Introduce these unusual anomalies.

Unconnected network cable shows connection enabled

Q: The windows xp system correctly recognizes the newly installed network card and installs the driver. In the case of no network cable connection, the network connection The "Local Connection" display is enabled and is in “Connected Status”. After connecting to the Internet cable and setting the corresponding parameters, the network access is performed, and IE displays “Unable to connect”. However, other computers on the same network can perform normal network access. Excuse me, what is the reason?

A: The cause of the fault is related to the network card. It is recommended that you use the following steps to troubleshoot the fault.

Replace the network card. Change the network card on the computer to another computer for testing, or change the network card of other connected computers to the computer for testing to see if the network card is faulty.

Reinstall the driver. Download the latest version of the driver from the official website of the NIC manufacturer and install it to see if it is caused by a driver incompatibility.

Replace the PCI interface. Swap the NIC into another normal PCI slot for testing to determine if the PCI slot is working properly.

Modify the BIOS settings. Upgrade the motherboard BIOS or set the BIOS to the system defaults.

The wireless router is not working properly

Q: I use the wireless router as the Internet sharing device in the home network. The WAN port is connected to the ADSL Modem, and the LAN port is connected to the desktop. Set to ADSL PPPoE access in the configuration wizard and specify the account and password. After setting up, I found that I could not access the Internet. Although my laptop can detect wireless signals, it can't access the Internet. However, I am directly connected to the ADSL Modem for dialing, but I can log in to the network normally.

A: The cause of the failure may be the following two aspects:

1. The client is bound to the MAC address. In order to avoid the user's use of the broadband router, the broadband service provider binds the computer's MAC address and account number together, and only the computer with the specific MAC address can achieve the Internet connection. If this is the case, you can use the MAC address cloning feature of the wireless router to clone the NIC MAC address of the computer that can dial ADSL.

2. The username and password are set incorrectly. If this is the case, check that the ADSL username and password in the wireless router are correct and that the settings are correct.