How does win7 system detect the network through Ping?

After downloading the flagship version of win7, the user will encounter the reason that the computer can't access the Internet, and this time will bring you the ping detection network in Windows. situation. Generally speaking, the reasons why the computer can not access the Internet are as follows: system IP setting problem, network card reason and line fault. When the user is excluded due to hardware problems, the ping command can be used to troubleshoot the system.
1. First, you need to run cmd as an administrator in the initial run.
2, enter the operating system in the dos window into Ping127.0.0.1, this method will detect the local TCP /IP protocol, by typing instructions to determine whether the protocol is normal.
3, if you can, then enter IPConfig to view your own IP address, if the network card and cat work properly, then you can rule out that your network adapter is faulty.
4, check the DNS service network, enter Ping http://www.baidu.com to check whether the DNS settings are correct and the DNS server is working properly, generally if there is no problem, then the status of the detection network is The direction of the Trojan and the virus has changed. It is very likely that your computer has been infected by viruses or Trojans, or it has been hijacked. At this time, users need to be vigilant.