Experts, it is normal for me to ping other hosts and gateways in the intranet, but pinging the extranet will lead to packet loss. Ping 100 will probably lose four or five packages. Why?

Will lose the packet, which means that ping can definitely ping. So it's basically because the network is unstable. The main reasons are as follows:

1. bandwidth, whether this machine or other machines in the local area network have P2P to slow down the network speed.

2. Is the network provider maintaining anything?

3.DNS problem, I used to use telecom ADSL, DNS is automatically obtained, except for large websites, other websites can not be opened, and ping websites will lose packets. If DNS is assigned, this problem can be solved.

4. Router setup problem. It is normal to Ping each other in the local area network, but it is unstable to ping the external network. You can enter the router and set the network parameters.

Mainly for the above reasons, check and eliminate:

1. Let's ping it with another computer first, and see if we can ping it and eliminate computer problems. Try replacing the network cable again. Sometimes the interface is loose, which also has an impact. Eliminate network cable problems. (Check the network cable of the router. Because you can connect other cables to the intranet, there is basically no problem. )

2. Try to replace the router to eliminate the router problem. For the parameter setting of the router, you can go to someone else to find a route with the same model and no problem in setting parameters, and bring a parameter file (generally, routers will save the setting parameters as files, so that you can load them directly after changing the route without resetting), thus eliminating the router problem.

3. Call the service provider to see if there is any maintenance or line inspection recently, reset the parameters to be set, and then talk to them about this problem by the way to see if they have any suggestions to eliminate the service provider's problems. By the way, see if your ping address is different from your line. For example, if you use ADSL of China Southern Telecom and the ping address is North China Netcom, this will happen if there are too many nodes between these two lines. )

4.ping other similar addresses to see if there will be packet loss. Ping more. If there is no packet loss, there may be a service problem with the address you ping. (provided that you have checked the DNS problem first)

5. See if anyone has downloaded anything on the intranet, or if someone has restricted you on the router. My home network, two families, two desktops, two notebooks, n mobile phones with wifi, too many terminals. At one time, I directly added rules to the route to limit the upload and download speed and blocked some sites. This is more destructive ... I admit)

If not, there's nothing I can do. There is a reward of 0, and so many words have been typed ... please refer to my other answers.