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Anonymous users2024-02-07It is recommended to reinstall the system, or delete the network card and update the driver again to see if it can be connected.
Executable steps.
1. After setting the IP, ping the machine, that is: ping -t If there is a packet return, it means that the IP protocol of the machine is normal, otherwise, there is a problem with the protocol, or one end of the RX+, TX+, RX-, and TX-of the NIC is not working, or the coupler of the NIC is damaged.
2. If 1 is normal, ping the routing gateway again to see if there is a packet return, if not, there is a problem with the network cable, and there is a problem with the router settings, such as turning on the firewall, MAC, IP binding, etc.
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Anonymous users2024-02-06First use the driver wizard to install the network card driver, no, it may be a problem with the network card, it is recommended that you buy a licensed TP-Link 10M large card.
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Anonymous users2024-02-05No, it should be your routing delay problem!
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Anonymous users2024-02-04I think you should go and fix the system from scratch.
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Anonymous users2024-02-03One: There is no network card in the device tube.
We all know that you can see the list of all hardware in the device manager and check whether the driver is normal, if the network card is broken, then you may not see the network card in the device manager - network adapter, and there is no unknown device, so the computer can not detect the network card, the device manager has no network adapter, there is no unknown device, and the network card cannot be detected.
2: Network card exclamation mark.
Also in the Device Manager there is the "Network Adapter" and there is also the "Realtek RTL8139......"Wait for a row in English, but in "Realtek RTL8139......"There's an exclamation point on it. And no matter how we install the driver, reinstall the system, etc., this exclamation mark does not disappear, that is to say, the network card does not work properly. When this phenomenon occurs, the network card has been damaged.
Three: The cable is not plugged in.
When we plug in the network cable, the lower right corner of the computer always prompts "the network cable is not plugged in". No matter how we plug and unplug the network cable, or replace the network cable with a new one, troubleshoot the network cable and network fault, and the computer still prompts "the network cable is not plugged in properly", we can also conclude that the network card is damaged.
4. The NIC indicator does not light up.
Normally, the indicator light will be on after the network card and network cable are connected, green means that it has been connected, if the network cable is plugged in, the network card light has not been lit, and the network cable has been replaced, the router and other tests are still not on, then it is also possible that the network card is damaged, such as lightning strikes caused by the problem is very common.
5. Data sending and receiving is abnormal.
NIC packets are sent, not received. In our experience of network card corruption, there are many situations that occur, everything behaves very normally, the only abnormal thing is that the network card can never obtain data packets, that is, the network card only sends packets, but does not receive packets. In this case, if you are troubleshooting the network itself, computer system problems, etc., it also belongs to the network card damage.
It's just that the performance of this kind of network card damage is not obvious, so that many people are troubled by it and take a lot of detours, and finally determine that the network card is faulty.
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Anonymous users2024-02-02The computer can't connect to the Internet, how do you know if it's a problem with the network card? Let me analyze it in detail.
01 First of all, it is necessary to see if there is a small computer icon (local connection) in the lower right corner of the desktop, which means that the connection between the network card and the Internet device is not normal.
02 At this time, you need to remove the network cable between the network card and the Internet device, and you can replace one to try.
03 Eliminate the network cable, and then consider the Internet equipment, if the original connection to the router, then let the computer directly connect to the optical modem, if you can, it is the problem of the router. If it doesn't work, you can conclude that it is a problem with the network card.
04 There is also a situation that can also be regarded as the fault of the network card, that is, there is no local connection icon in the lower right corner of the desktop, and the network adapter cannot be seen in the device manager, which belongs to the network card is not recognized by the system at all.
05 When the local connection icon in the lower right corner of the desktop is a yellow sigh mark, you can also see a yellow sigh mark in front of the network card in the device manager, most of which are abnormal network card drivers, which can be solved by installing the corresponding driver according to the network card model**.
The following steps are performed to install the NIC driver: >>>More
To open the Network and Sharing Center interface, you can right-click the network icon in the taskbar and select Open Network Sharing Center from the pop-up context menu. >>>More
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There are two solutions to this problem.
1；Find a place with a super good signal, and no one will compete with you for the Internet. >>>More
It's okay to buy a router and install it, it is recommended to buy a TP-Link brand, this brand is more durable And after installing the router, you don't need to dial up and connect to the Internet every time you turn it on.