What are the two aspects of traditional network problems

There are three main types of hardware failures in computer networks, namely, network device failures, host failures, and peripheral failures.

1. Network device failures

General switch as well as server failures are usually compatibility issues, and if a computer that has been working normally suddenly has a network failure, most of the problems are with the switch. This can sometimes be solved by restarting the power supply to the switch, or replacing the switch if the problem still exists.

2. Mainframe failure

If the mainframe fails, the impact is even greater than the network cable failure, mainly caused by the failure of the hard disk, graphics card, CPU, and memory stick components. The hard drive failure will make the computer's hard disk data missing or even empty; graphics card failure will make the monitor display problems; CPU failure will make the computer can not start; memory stick failure will also make the computer can not start. If you don't find the NIC driver when the computer starts up, it's a NIC failure, and it has to do with the cable, the NIC, and the network configuration.

3. Peripheral failures

Peripheral failures usually don't have a direct impact on the network system, but they can still affect normal operation.

Monitor failure is usually due to static electricity, dust, poor heat dissipation, prolonged use and electromagnetic interference caused by the components of the display will be damaged; mouse and keyboard failure is due to life problems and do not pay attention to the cleaning; printer failure is due to the true blocking of the output is not long or the print head wear and tear, these peripheral failures can be resolved by replacing the problem, but the normal work of the computer will be affected. The computer will be affected.

(B) the computer network in the software failure to solve

The computer network software failure mainly refers to the network protocol problems and configuration errors and so on to make the computer network anomalies. Usually include hosts, routers, important into the city and ports and other aspects of the failure. To solve these failures, it is necessary to carefully analyze them to find specific solutions.

1. Host failure

The network protocols installed on the host must be the same as the other hosts on the network, otherwise there will be a mismatch of protocols, resulting in computer network failure. At the same time, the domain name server settings should also be noted, if the settings are wrong, the domain name can not be resolved, and thus can not access the Internet.

For these problems, first of all, we should check the protocol of the host, and secondly, we should check whether the corresponding service program is installed, as long as we do these two aspects, we can solve the host failure.

2. Router failures

Router roadblocks are mainly the following problems, namely, router misconfiguration, too little memory remaining, incorrect port parameter settings, and high CPU utilization. Among them, if there is a router configuration error, the remote address will not be found, and if the memory remaining is too small or the CPU utilization is too high, the quality of the network will be reduced.

3. Firewall failures

Firewalls can provide all-around protection for computers on a LAN, but due to the nature of firewalls, there can be some "fake" failures, such as pinging but not being able to access the other side's computers. To troubleshoot these firewall failures, in fact, very simple, you only need to temporarily turn off the firewall, if the failure no longer occurs at this time, you can be sure that the firewall failure, the main reason for the firewall restrictions on the network, especially the first time users use the browser to access the Internet, this situation will be the most likely to occur. In the user's first use of the browser to access the network, a window will pop up to ask whether to allow the program to access the network, if the user did not pay attention to a moment to choose not to allow the words, to limit the network access to the software, which is suspected of network failure.

4. Operating system failure

An important reason for computer network failure is operating system failure, the user to modify or delete some computer settings, there may be some very serious problems, such as access to be restricted to cause errors and so on, to solve these problems just need to restore the original settings.

Fourth, the conclusion

In summary, if the computer network failure, it will have a serious impact on the work of the entire computer, and may even cause serious economic losses. Therefore, we can not always wait until the computer network failure to deal with, we must focus on daily preventive work, in the solution to the failure to choose the appropriate detection methods and solutions, only in this way can the failure of the loss is reduced to a minimum.