In the process of using window computers to access the Internet, we often encounter DNS The server Unresponsive issues, DNS The server It's very important for us. If it doesn't respond, we won't be able to access the Internet. Although you are still connected to the Internet, a yellow exclamation mark will appear on the icon of the Internet, and you still cannot access the Internet.
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The first measure: restart the computer, use the ipconfig/all command to check the IP address, restart the DHCP service, and set the automatic acquisition of the IP address
(1) If the problem is not solved, restart the computer or try someone else's computer. If not, you can call the network Operator 。 The DNS configuration on the network side may be incorrect. Confirm at Operator If the DNS is correct, you can try the following solutions.
(2) Use the ipconfig/all command to check your ipv4 address. If it starts with 169, this may be the problem. Since IP is usually set to be automatically acquired, your IP can only use the default address when DHCP is not started or updated. At this point, you need to restart the dhcp client service in the service, set it to automatic, and then obtain the IP again.
The second measure: manually set your ip and dns in Tcp/ip
(1) If the problem is still not solved, you can manually set your IP and DNS in TCP/IP. The setting example is as follows: the above red line 1, a number can be changed at will, 2 is your routing address or gateway, and 3 is the DNS server address, so you can find any one at will. Then see if you can get online. If the problem cannot be solved through the above steps and operations, it is likely that your network card is broken, and you can report it to the operator for repair or solution.
Third measure: repair with safety tools
Commonly used computers are usually equipped with security tools such as 360 or computer butler. You can use your own network repair tool to repair. This is a very convenient and effective solution.
Fourth measure: change the address of the domain name system and ping the gateway and intellectual property with the command
(1) Open the network and sharing center, select the currently connected tcp/ipv4, and then select the DNS address 8.8.8.8 in the automatic DNS acquisition option, and then check whether the Internet is available. If not, please continue to look down.
(2) Use the cmd command to start - run cmd - enter ping 127.0.0.1, which is the address of your current host. If the ping is successful, it means that the TCP/IP protocol is OK and does not need to be reinstalled. Go to step (3). Otherwise, you need to reinstall the driver for the protocol.
(3) If there is no problem in (2), you can enter your gateway address, that is, your router address or switch gateway address, which is generally 192.168.0 (or 1.1). The specific method to obtain the gateway is to enter ipconfig/all on the command line, and then find the gateway address corresponding to the currently connected network type, as shown in the figure: the second red line in the figure.
(4) If the prompt is successful, it indicates that the router is connected normally and does not need to be restarted or set. Please go to step (4). If it is not successful, you need to set up the router. For specific settings, please search the router settings and boot. Remember to select DHCP. Of course, the simplest way is to restart the route, so that the general problem can be solved. If you don't understand, please consult Mengfeiyun idc.
