How do I check the quality of the network and how do I detect the quality of the network?

Test the speed of the Internet. 360 comes with it.

You can check your computer's internet speed by using the following methods:

1.Open a speed test in your browser, for example, click the Start Test Now button and wait for the test results. This will test your speed, upload speed, and latency (ping) to make sure your internet connection is working properly.

2.Use network monitor tools, such as Task Manager and Resource Monitor, which come with Windows, or a third-party network monitor, to monitor the real-time speed and traffic of your network. In the Performance tab of Windows Task Manager, select Network to view network uploads and speeds in real time.

3.Judge the speed of your computer based on your internet speed. Generally speaking, when the speed reaches more than 100 mbps per second, the upload speed reaches more than 50 mbps per second, and the latency time (ping) is less than 30ms, it means that your computer has a relatively fast internet speed.

It is important to note that the test results of the electric lift are affected by many factors, such as network bandwidth, router quality, and network congestion. Therefore, the test results are for reference only and cannot fully reflect the actual network speed of the first computer.

1.The first thing is to look at the outer packaging of the network cable, there will be detailed product information, such as origin, product type, network cable length, etc., and some manufacturers will also label it with anti-counterfeiting labels. There will be English logos on the network cable, such as "cat5" for the five types of wires, and "cat5e" for super five categories, and the font printing is clear and clear.

2.The second is the feeling, the plastic skin of a good network cable is smooth and tough, and if you pull it hard, you will find that the stretch is very good, and it is generally difficult to break it. If you peel the skin with scissors, you will find that there is a white line inside the network cable, which is a pull line, which can withstand a pull force of 11kg, while the inferior network cable does not.

3.The third is burning, the really good network cable will not burn, after the barbecue, the network cable will gradually melt, but there will be no flames, so it is true or false can be identified as soon as it is burned, as the so-called "real gold is not afraid of fire".

4.The fourth is the line, after opening the outer skin of the network cable, you will see 4 pairs of wires, these 4 pairs of lines will be twisted in a counterclockwise line of defense, and the distance between them is called "lay distance". **The lay-length between the 4 pairs of network cables varies, but the lay-length of each pair of wires is very uniform.

In order to save trouble for inferior products, the lay length of 4 pairs of wires is often the same, as long as the two network cables are compared, it is easy to distinguish between good and bad.

5.The fifth is the core, the inside of the network cable is generally used copper as the transmission medium, and the thickness of the copper core will directly affect the performance of network transmission, the coarser the copper core, the better the quality. In addition, with the **** of copper, the market has appeared with oxygen-free copper instead of oxygen-free copper products.

According to a professional, you can use the trick of "looking at the light", ** oxygen-free copper has a good gloss, looks shiny, if it is dull, then it can be judged as an inferior line.

6.The sixth is testing, according to the introduction of professionals, all identification methods can not 100% correct judgment of the quality of the network cable, and the most scientific method is testing. According to the national test standard, the fluke4300 test tool is used for testing, so that the quality of the network cable can be completely determined.

There is a kind of testing instrument that will light up when the network cable is connected, and another way is that you use a multimeter to measure one by one.

There is an instrument to detect whether it can be passed. Ordinary people just plug in the computer and try it between the cat.

It 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.

First 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.

No, it should be your routing delay problem!

I think you should go and fix the system from scratch.

Retrieve a lost local connection.

If the network card is not working properly or is corrupted, you may not see the Local Connection Icon when you open the Network & Dial-up Connections window. To check whether the NIC is working properly, you just need to click the "Start" "Settings" "Control Panel" command, in the pop-up control panel window, double-click the "System" icon, in the pop-up system property settings window, open the "Hardware" tab page, and then click the "Device Manager" button, in the hardware device list interface that appears later, double-click the NIC icon, and in the next NIC property setting interface, you can see the working status of the NIC is good or bad.

Every time you need to modify the Internet access parameters of the server or workstation, you must first open the network and dial-up connection window, and then open the property setting window of the local connection. If one day you can't find the local connection icon, you won't be able to access the network settings window, so you won't be able to modify the Internet access parameters of your server or workstation as you wish. So once you encounter the phenomenon that the local connection icon cannot be found, how do you quickly deal with it? I believe that the following tricks in this article can help you quickly retrieve the disappeared local connection icon.

Check the status of the NIC.

To check whether the NIC is working properly, you just need to click the "Start" "Settings" "Control Panel" command, in the pop-up control panel window, double-click the "System" icon, in the pop-up system property settings window, open the "Hardware" tab page, and then click the "Device Manager" button, in the hardware device list interface that appears later, double-click the NIC icon, and in the next NIC property setting interface, you can see the working status of the NIC is good or bad.

If you can access the Internet normally, it means that the network card is good.