Don t come to 100 if you don t understand the local connection problem

According to what you said, the network card 8139 is fine, the network cable is fine, the switch is fine.

There is no problem with any hardware, it is only the system.

Re-measure the crystal head, it may be that the crystal head is aging.

Win2000 system is not easy to use, or use XP.

Have you ever tested the network cable with a line tester? The most such situation is that it appears on the network cable, and sometimes the network cable is not in good contact with the switch, I suggest you still carefully check all your hardware equipment! I've had this problem many times.

There is a small chance of a software issue.

Run: Opens the service page.

Procedure Call (RPC) is set to automatic, and Connections is set to automatic.

and play to automatic.

4.Register the component Start Running: Enter: regsvr32regsvr32

regsvr32

Note that it is run in three parts.

5.Restart the machine.

It may be that there is a problem with the registry, you got a virus when you installed something, and you inadvertently clicked to agree to terminate something, and you may have blocked the network connection.

There are multiple reasons for this problem.

1.Viruses, gateway spoofing viruses will appear in this case, you can run cmd->ping in the run

t try to connect to the external network no,Generally, the virus is not on the Internet,You can also try the antivirus software antivirus,The virus database should be the latest when you kill the virus,360 is more convenient,If you can, you can also use some other antivirus software,Rising、Jiangmin、Kingsoft、NOD32、Norton can be used。

2.The network cable connector is loose or about to break, re-do a network cable head, you need a network cable crystal head, a network cable pliers, you will do it yourself will not go online to search how to make a network cable connector, it really can't buy a network cable outside, you only need to tell the seller how long the network cable to buy, the head seller will help you do a good job.

3.There is a problem with the network card, generally in this case, you only have to buy a network card and replace it, you can enter cmd->ping -t in the operation to see if you can connect to it, this command is local ping, local use, if it can pass, it means that your network card is good.

That's basically it, and the second possibility is more likely.

This is the network cable problem;

It is recommended that you try to redo the mesh header;

Plug both ends back in;

Reboot your router or switch.

Check whether the network cable socket is loose, or restart the cat and router.

I unplugged the network cable, put it in, and connected it.

Take a look at the network cable plug, or router,