The computer always shows that the local connection is lost

The local connection is the network card, it is recommended to wipe off the network card, and replace the network cable crystal head.

Can you access the Internet when you disconnect, if you can't access the Internet, your cat is broken, because if it is restricted, the cat has an IP address inside, and you can also access the Internet, and you can't get on it when you disconnect, the biggest possibility is that your cat is broken, you try to change the cat.

Check whether the plug of the network cable is oxidized, and wipe the interface with a piece of wood to see.

Processing is useless, you have to do it all over again

If there is no problem with the computer at home.

That is, the total interface of the community network cable is loose.

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Problem: 1 NIC 2 network cable header 3 routing.

Maybe there's something wrong with the cat.

The crystal head is not in good contact.

Take it and start anew.

The reasons are as follows: 1. The network line is not in good contact, most of the plugs are loose, and some are disconnected.

2. There is a problem with the quality of network hardware.

3. There is no heat dissipation for the splitter, cat, and router.

4. The integrated NIC is unstable. Hiking.

5. The distance between the user and the computer room is too far, and the line file is resistant to medium wear and tear and interference.

Solution: 1. You can change an independent NIC and update the NIC driver.

2. Establish a new network connection.

3. Re-set the IP protocol.

It's not connected, check the network cable!

You may not have plugged in the network cable, or you may not be connected.

Check if your wireless switch is turned on After opening, right-click on the local connection point to connect and can't connect again Open the control panel Network and Sharing Center Click on the red cross between the computer and the Internet It will be automatically repaired Follow the prompts to operate If it still doesn't work, see what the last prompt comes up to supplement the problem and then find a way to solve it.

Since you use your router's wireless network, it has nothing to do with a local connection.

First, disable the wired connection (it may be caused by a system abnormality) The steps are:

Click the network icon in the taskbar Open the Network and Sharing Center Change adapter settings Right-click Local Connections Disable.

Then, troubleshoot the wireless connection one by one until you have a valid wireless connection.

Windows 7 operating system, make full use of the troubleshooting wizard to solve wireless network problems (click on the red cross), very effective!

If you're using wireless, don't worry about it.

If you use a wired cable, the network cable is broken, or the router is not connected properly.

The solution is as follows:

Frequent computer disconnection is caused by viruses in many cases, so the first step is to use a comprehensive anti-virus, and after the anti-virus is completed, use the "360 First Aid Kit" to scan and repair the system.

If the above two methods are not solved, then there is a high possibility that the network cable and modem (commonly known as "cat") will fail. Replace the network cable from the modem to the computer directly, and then restart the modem.

I would like to ask if you are referring to a network card when you say a local connection, and I hope you are not referring to a broadband connection.

1. Replace several network cables like this, you can eliminate the problem of network cables and crystal heads2, if you can borrow a switch, you can connect the computer and the switch, so that you can judge whether the cat is broken.

3. The problem that occurs only after replacing the motherboard: the first may be the defect of the motherboard itself There is a chance to change the motherboard, and the power supply of the second original machine may be insufficient.

In fact, this is not a system failure, it should be a broadband problem, if you try to change a network card, if it is still not normal, try to change a cat, and then it will be a network problem, then you have to contact broadband customer service to help you solve it.

Select 10baset or 10 baset full duplex in the local connection properties -general-configuration-advanced-value

The network cable is too long or the crystal head is not done, or the network card is broken, or the power supply at the end of the router or cat is unstable or the interface of the router and the cat is broken.

How many network cables do you have, more than 100 meters?

If there is no hint such as IP conflict, it means that the crystal head and network cable are not in good contact.

1. Computer network card interface problem.

2. There is a problem with the network cable, redo the crystal head.

3. There may be a loop in the network, check the network.

The network may be unstable or the network cable interface may be faulty.

How to get on the net. Is it dialing or using a router, etc.。。。

There are several reasons for this.

1。There is a problem with the route. The contact is not good... So unstable 2. Your device is too long or hot for reasons, so it's unstable...

3。If none of the above is a problem. Then ask the network provider if it's their reason... If so, report it directly. That's it.