What should I do if my mobile phone computer at home cannot be used? Step by step to teach you to troubleshoot network faults

Often encountered someone asked me: How can the phone/computer connect to wifi, but can't get on the net? “Here, I am going to teach you how to troubleshoot if you can't get on the Internet at home.

The home network can not be divided into the following categories:

First: network equipment failure (including: optical cat, wireless router, switch)

Second: broadband fault

third: network cable failure

fourth: computer or mobile phone failure

router device connection diagram

First, at home Most of the network is caused by the wireless router. As long as the lines are connected properly, we first check if there is a problem with the wireless router. Some people say: I can connect to the wifi signal, but I can't get on the network. It shouldn't be a router problem. Here I want to tell you that the WIFI signal you connect is just your mobile phone or laptop connected to the router, it does not mean that you can access the Internet, or your router is no problem.

Why do you want to start troubleshooting from the router first? There is a reason, because some routers are hot or work, but they are easy to crash. Although the crash, your router WIFI signal can still be connected, but can not access the network, therefore, this situation can be restarted under the router, the router plug-in is removed for about 10 seconds and then plugged in.

If there is a frequent crash, then there is a problem with the quality of your router. It is best to change one.

If the restart is useless, then we first enter the router management interface to view the situation, how to enter the router I mentioned in the previous article, here is not specifically how to enter the router.

Enter the router management interface, find the running status, and then check the status of the WAN, as shown below: If it is the WAN port shown above (the WAN port is not connected), the description may be between the cat and the router. The network cable is not plugged in, or the router's WAN is broken. In the case of thunder, the WAN port is very easy to break.

If it is the WAN display (connecting...) as shown in Figure 2 above, then you should first re-enter your broadband account and password first. If it still can't be solved, then it may be cat. Broken, or broadband is under maintenance, or broadband arrears.

If the WAN port in the running state is as shown below, then there is no problem with the router and the broadband. Then if it is not on the computer, the phone can be on, it must be a computer problem.

There is no problem with the network card or system poisoning on the computer.

There are several problems with the network card: the network card driver problem, the network card is disabled, and the network card is broken.

If it is a NIC driver problem, then we just need to reinstall the driver. If the network card is disabled, then we will re-enable the network card, if these two can not be resolved, then we re-install the system to try, if the installation system can not get online, then you can only change the network card.

The following picture shows the NIC driver problem. Enter the device manager to view the NIC driver. As shown in the figure below, the network card is disabled. The front of the network card is a red cross.

If the computer can access the Internet, the mobile phone can't connect to the Internet, then it is your mobile phone problem. Some Apple mobile phones can't reconnect this WIFI name after modifying the WIFI password. You must modify the SSID to re- Connection, if you can not modify the SSID and password can not be connected, then your mobile phone wireless network card is broken.

The above is the general network failure problem at home. I hope to help you. This article mainly shares some solutions and possible hardware problems. I believe that there will be a certain learning effect for novice friends.