After a sudden power outage in the middle of the night, I turned it on the next day and found that t

You can unplug the network card in the mode, if not, take it to another computer to try to see if it can be used, if it can be used, it means that the network card is not broken, if there is a problem you can reinstall the driver to try. Check if your network cables, cats, routers and other devices are normal!

Since you have an onboard network card, why do you need to connect an independent network card, according to your situation, you can try to repair the connection, if not, it should be the chip of the network card is damaged, prompt, unplug the network card and reinsert it, maybe there will be unexpected gains.

It is estimated that the voltage is unstable, the network card is burned, and it is possible that there is a short circuit.

Try a different network card.

It should be the problem of the network card.

Sudden power outage burns the network card, if it's not a good network card, it's still a piece, anyway, it's not expensive, I have an unstable voltage here, and there are often power outages, I burned several pieces.

Press F8 to power on

Then the last time the correct configuration is to see!

1. It may be because of a sudden power failure that causes the router to start shouting, and all settings are restored to factory settings.

2. You can try to reset the settings, and the setting method is as follows.

3. Open Internet Explorer first, enter enter the car enter in the address bar, and the user name and slippery sensitive password will appear, and the user name and password are both (admin) click enter.

4. Then there is a network parameter setting on the far left of the interface, click it, there will be a wen port setting, click on the right side and the interface will come out.

5. Select Xinzhi PPPOE, and then enter your Internet account and password below, click Connect, and then click Save when connected, and then log out.

First use your mobile phone to connect to wifi to see if you can surf the Internet normally, the same is a router problem, restart the router, and check whether the router network cable is loose. The mobile phone can go online normally, use the following methods to set up the computer.

Method. 1. Reset the network.

1. Press win+r on the desktop to enter cmd and click OK to open the command prompt window, win10 right-click the start menu with the mouse to open the command prompt (administrator).

2. Enter in the command prompt: netsh winsock reset (you can copy and paste with the right mouse button) Later, there will be a successful prompt, successfully reset the winsock directory, restart the computer to complete the reset.

PS: The win key is a key with a Microsoft icon next to the Ctrl key.

Method. 2. Check the IP address and DNS

Click on the network icon on the desktop taskbar, open the network and sharing center (win10 with the right mouse button on the network icon of the taskbar), wired point local connection (wifi point wireless connection), point properties, double click ipv4, set ip address and dns to automatic.

Method. Third, go to the router settings, reset the wireless wifi user name, do not use Chinese.

You unplug the network cable and the computer shuts down. Then plug the network cable back in and start it again.,If there's a hub or a router or something like that, turn it off and turn it on again.。。。

Do you see if the network settings have changed because of a sudden shutdown? Such as IP addresses, gateways, etc.

It can be divided into the following cases:

Is it your home that has lost power or the area where your home is located?

1: Your home power outage---A broadband account is suspended, after turning on the broadband again, there is a 691 broadband password error, please wait for a few minutes before connecting, do not keep clicking on the broadband connection, resulting in the account being hung on the server without going offline.

b If you have a cat ADSL or a router installed, the signal between the cat and the router is not yet connected, of course you can't access the Internet, please wait for a while and try again.

2: The optical fiber terminal equipment in ---the building of the community has not been restarted after the power outage in the area has not been completed, and it generally takes a few minutes before it can be launched, so you have to wait for a while to try again.

The cat or router doesn't boot up yet (this problem is more troublesome).

The system files are damaged due to a sudden power failure, which has nothing to do with the hardware.

Start the computer first, press the "F8" shortcut key on the keyboard when the system boot screen is about to appear, enter the boot menu option, and select "Last correct configuration." Try to start it.

If that doesn't work, reinstall the system.