1, the dns error caused by IE's failure to open the webpage is generally due to the DNS server itself or the wrong DNS server address set by the user. For users who use broadband internet access, dns is automatically obtained. For this phenomenon that they can access qq but can't open the webpage, they can use the ipconfig/flushdns command to get it again. Or set the dns server address to 8.8.8.8 (this is the free DNS server address provided by Google). Users in the local area network, if they can't open the web page and see the prompt of DNS error, mostly have problems with gateway settings and need network management to solve them.

2.ie browser component was modified by virus, which caused IE to be unable to open the webpage, and this machine could not access some designated websites normally. Download Kingsoft Guardian with browser repair function. After installation, click "Kill Trojan Horse" to use the quick scan function.

3. IE can't open the webpage because the IP address is set incorrectly or the acquisition fails. Some ADSL users like to set their own IP manually when they see a yellow triangle on the "local connection". At this time, there will be questions. In most cases, we will set the IP address to be automatically obtained, unless it is a local area network with a fixed IP, which needs to be solved by the network management.