Why does the network often lose packets? The network is normal, but packets are lost

Check whether the domain name resolution is correct, whether the correct public IP address is resolved, if the packet loss is very serious, do a local line test, click to start > point to run > enter cmd, enter DOS, enter tracert space IP address or domain name, if a certain segment appears * or "100ms, it means that there is a problem with the line, check the corresponding IP or domain name behind, indicating the packet lost here. The line is not good for timeout, of course, it will be very slow to open ** or can not be opened, if it is indeed a line problem after checking, please change the line environment, so ** is your own, you can replace the computer room (find ** business to replace the computer room), generally the northern Netcom computer room, the southern telecom computer room.

Internet packet loss is actually related to a series of devices: servers, cats, routers, network cables, and computers;

If the server is lost, then a vpn may be needed to link, if both are lost, it means that the possibility of local problems will be greater;

2. Cats, the test of cats is very simple, after the warranty, directly let the relevant operators come to test;

3. Router, link the router to test it once, and then directly link the computer to test it again, compare the ping value, of course, if the packet loss can only be used (update the router configuration file.

replace the router) to solve;

4. Network cable: try to change a new network cable to know;

5. Computer: In the same environment, use other computers to ping the target**, compare the data and you will know, the computer packet loss is generally caused by poisoning, and the easiest way is to kill the virus or reinstall the system.

As mentioned above, judging packet loss is a systematic project, and you can start with the simplest server and computer (after all, you don't need to prepare anything).

Packet loss rate is the process of network information being transmitted to your computer, and the loss of information is related to your network cable, network card, and server.

Netcom? Telecommunications? Tietong?

Check your internet speed on their**.

Turn off all your internet-related connections.

Then speed test If it's not a problem with the web server, you can start with your own computer!

The causes of packet loss are network problems, physical line faults, network equipment faults, network bottlenecks, network attacks, and network loops.

1. The network itself.

Network problems can be classified as follows: network failures and ISP network problems in areas outside the jurisdiction.

2. Physical line failure.

If you find that the WAN line is interrupted from time to time, it may be that the line is faulty, or it may be due to the user. In order to distinguish whether it is a line fault, you can do the following tests.

3. Network equipment failure and network bottleneck.

Network bottlenecks refer to some related factors that affect the performance and stability of network transmission, such as network topology, network cables, network cards, server configurations, network connection devices, etc.

4. Cyber attacks.

No matter what kind of attack behavior, such as worms, Trojan attacks, DOS attacks, etc., these attacks with a certain characteristic database can easily escape the detection of firewalls or IDS and enter the intranet, resulting in network paralysis, packet loss and even network disconnection.

5. Network loops.

If there is a loop in the network, a broadcast storm may occur, resulting in network packet loss and delay.

The causes and solutions of network packet loss are as follows:

2. The equipment performance of routers, switches, firewalls, etc., is a solution to the problem: replace the network hardware with larger throughput and better performance or build a cluster to improve the throughput;

3. Software problems on network equipment, solutions: update the software on the devices affected by software problems;