The network cable is always automatically dropped, what should I do?

If the broadband connection is frequently dropped, the solution is as follows:

1. If you use a router, disconnect the router for stand-alone dial-up test;

2. If you have a modem device, please pay attention to whether the device is overheated, and it is recommended to turn it off for a few minutes before restarting it.

3. If the connection is dropped when running the program alone (such as when playing games), it is recommended to restart the computer or reinstall the program;

4. Check whether the disconnection is caused by computer virus, and it is recommended to scan the whole disk;

5. If there is a server option for the running program, please select China Unicom.

If the above methods still cannot solve the problem of disconnection, you can contact the local manual customer service for feedback.

There are many reasons for the router to drop, first check whether it is a hardware reason, such as the red square of the line connecting to the broadband is damaged, and whether the interface connector of these lines is not in good contact. If it is found that it is a problem with the line, the operator will be asked to solve the line problem. In addition, there are routers and cats that may fail, and this solution is very simple, just use the replacement method, and try it with a new router and cat.

Of course, it may be due to the vulnerability of the user's computer itself, etc., all it is recommended that netizens reinstall the computer system to see if the fault is fixed.

How to determine which part is wrong, we can use the dos command that comes with the computer system to make a simple preliminary judgment.

1. Test the section of the computer to the routing first, that is, the intranet part is abnormal. Enter the system desktop, press the win+r key at the same time, the running window will appear, enter cmd and press enter.

2. The following DOS window appears, enter ipconfig, and then press enter, see what your routing gateway is, the routing gateway on my side is, different network gateways may be different.

3. Then enter ping -t, if your gateway is different from mine, you will have to replace it with your gateway, just pay attention to this. And then start sending and receiving packets like this, normally < 1ms with no disconnect in between. If it looks like the following, it means that the intranet is normal.

4. Let's check the situation of the external network again. We can ping -t, why ping? Because it is an external Yuxian network address, you can judge whether the external network is normal by observing the condition of the computer connected to it.

Situations like the one below are normal.

5. What are the abnormal conditions? For example, a request timeout like the one below is not normal. The more frequent the outage, the more requests will time out, and the more dense they will be.

If the ping gateway is normal and the ping is frequently disconnected, it means that there is a problem with the external network, and if there is a problem with the packets returned by both addresses, it means that there is a problem with the internal network. Through the above method, you can quickly determine which part is wrong, so as to narrow down the search scope and reduce the workload.

Three. Through DMZ mapping, the external attack on the open port of the ADSL cat is transferred to the internal click Other Settings --nat--Add Add Add a NAT rule, select DMZ as the rule type, add other unused IP addresses to the local address, and transfer the IP packets of the attack.

Please try to do all three of the above methods. Then click Manage Save & Restart to save the configuration.

The most important thing is to set up the DMZ mapping.

First of all, troubleshoot the hardware problem, restart the router, modem, and switch and redo the network cable header.

Enter the route, disable the DHCP service, and bind the MAC address.

If you are disconnected, there is a problem with the large network environment, or there is a problem with your routing.

What should I do if the network drops frequently, and how to solve the network instability?