DNS is a distributed database of domain name and IP address mapping, which is convenient for users to connect to the Internet. If the DNS in the computer is parsed incorrectly, it will cause network access problems in windows. There are many reasons for the DNS error caused by the system. Under normal circumstances, we can solve it through the system settings. Today, Xiaobian uses the win8 system as an example to give a detailed introduction to the causes and countermeasures of the DNS error in win8!
First, the virus in the computer
If the virus in the computer is generally malware tampering with the user's home page, hijacking the computer DNS, etc., causing the computer to open a well-known website will jump to other malicious websites, or simply the website can not open.
Solution: Use anti-virus software to scan the computer first, check whether the computer is infected with viruses, and whether there are anti-virus software related tips. If the web page can be opened after anti-virus, most of it is caused by the virus.
Second, the website failure
When it is found that some websites will open DNS errors, but some large stations open everything, this situation is mostly due to the website name server failure or the website server is faulty. In addition, there is also a situation in which the network service provider (such as the telecommunications network service server fails, there will be similar situations, mainly due to line congestion, common local area websites are inaccessible, regional, generally such a situation is rare occur).
Solution: Because it is a problem of the website itself, we generally can't solve it. We can only access it when the website is back to normal.
Third, network failure
Network failure is a common cause of DNS errors, often because there is no network to open the web page has a similar prompt.
Solution: Fix network problems.
Fourth, the computer DNS settings error
Although most of our friends will not set up DNS on the Internet, generally use automatic acquisition, but many LANs need a fixed IP address, choose a fixed IP address, we need to input The DNS address is gone, and the DNS input error will cause the webpage to fail to open. The reason is described above. I believe everyone will understand that if the DNS setting is wrong, we will find: QQ can be on but the webpage cannot be opened.
Solution: Go to "My Network Places" - "Local Area Connection" and right click on the property. In the "Connect to use the following items", look for the (TCP/IP) option and double-click it. There will be a DNS option below. You can try to obtain the DNS automatically. Because the DNS of each region is usually different, if you can't get it automatically, you can contact the local network management department to check the DNS to fill in. You can also search the DNS server for the local network service provider's DNS IP address.