1. Virus in computer
If the computer virus is generally malicious software tampering User homepage, hijacked computer DNS, etc., causing the computer to open a well-known website will jump to other malicious sites, or simply can not open the site.
Solution: Use antivirus software to scan the computer first, check whether the computer virus, whether there are anti-virus software related tips. If the anti-virus after the page can be opened, mostly because of the cause of the virus.
2. Website failure
When found to open some Web site will appear DNS error, but some major stations to open all normal, this situation most due to Web site domain name server failure or Web server failure. There is also a situation in the network service providers (such as telecommunications network services server failure, there will be a similar situation, mainly due to line congestion caused by a common local area of the Web site is inaccessible, with a regional, generally such cases rarely occur).
Solution: Because it is the problem of the site itself, so we generally can not solve, only to wait until the site returned to normal access.
3. Network failure
Network failure is a more common cause of DNS errors, often because there is no network to open the Web page has a similar hint.
WORKAROUND: Fix the network problem.
4. Computer DNS Setup Error
Although most of our friends do not go online to set up DNS, generally use automatic acquisition, but many local area network need fixed IP address, select fixed IP address, we need to enter the DNS address, and the DNS input error will lead to the Web page can not open, the reason is introduced, I believe everyone will understand, If the DNS Setup error we will find: QQ can be on the page but not open.
Workaround: Go to "Network Places"--"Local Area Connection" Right to select Properties, in the connection using the following items, look for (TCP/IP) option double click, there will be a DNS option below, you can try to get DNS automatically because of the local DNS is usually different, if the automatic acquisition does not , you can contact your local network administration to query DNS for filling in, or you can search the DNS IP address of the local network service provider on the Internet. The following figure:
The above DNS server address to fill in the correct general can open the Web page, the general our computer is the choice of automatic access to IP router allocation and automatic access to the Network service provider DNS, but because of the need to fixed IP to solve the computer boot local connection is slow and so on, you need to set up DNS, Address suggest friends best to ask the network business to obtain, the general online search is also possible.
The main cause of DNS errors in Windows system may be computer poisoning, or Web site or network failure, or the computer itself may be the result of DNS settings error, the user to find the real reason for their own DNS errors to find the appropriate response measures to solve the problem.
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