"Unable to browse the web" Ten strokes to solve intractable diseases (1)

I believe that everyone has encountered problems like IE can not browse the Internet. Here are some common reasons and solutions for you:
First, the problem of network settings

This kind of reason is more likely to need to manually specify the IP, gateway, DNS server networking mode, and use The proxy server is online. Double check your computer's network settings.

Second, the problem of the DNS server

When IE can not browse the web, you can first try to use the IP address to access, if you can access, then it should be a DNS problem, causing DNS problems If you get DNS error or DNS server itself when you are connected to the network, you can manually specify the DNS service (the address can be the DNS server address provided by your local ISP, or you can use the DNS server address elsewhere). In the properties, (Control Panel - Network and Dial-up Connection - Local Connection - Right-Click Properties - TCP /IP Protocol - Properties - use the following DNS server address). Different ISPs have different DNS addresses. Sometimes it is a router or network card problem, and can't connect with the ISP's DNS service. In this case, you can turn the router off for a while or reset the router.

Another possibility is that there is a problem with the local DNS cache. In order to improve the speed of website access, the system will automatically store the website that has accessed and obtained the IP address into the local DNS cache. Once the website is accessed again, the website will be taken out from the local DNS cache without going through the DNS server. The IP address is accessed. Therefore, if there is a problem with the local DNS cache, the website will be inaccessible. You can rebuild the local DNS cache by executing ipconfig/flushdns in Run.

Third, the problem of the IE browser itself

When the IE browser itself fails, it will naturally affect the browsing; or IE is maliciously modified and destroyed will also lead to the inability to browse the web. At this time, you can try to use "Jinshan drug security assistant" to fix.

Fourth, the problem of network firewall

If the network firewall is not set properly, such as the security level is too high, accidentally put IE into the block access list, wrong firewall policy, etc., you can try to check Strategy, reduce firewall security level or turn it off directly to try to get back to normal.

V. Network protocol and network card driver problems

IE can not browse, it may be caused by network protocol (especially TCP/IP protocol) or network card driver damage, you can try to re-network card driver and Network protocol.

Sixth, HOSTS file problem

HOSTS file is modified, it will also lead to browsing is not normal, the solution is of course to empty the contents of the HOSTS file.

VII, system file problems

When the system files related to IE are replaced or damaged, it will affect the normal use of IE, then you can use the SFC command to fix it, WIN98 system SFC can be executed in "Run" and then scanned; WIN2000/XP/2003 is executed in "Run" by sfc/scannow.

When only IE can't browse the webpage, and QQ can be on, it is often caused by damage or loss of files such as winsock.dll, wsock32.dll or wsock.vxd (VXD only exists under WIN9X system). Winsock is an important part of the TCP/IP protocol. Generally, the TCP/IP protocol is reinstalled. However, xp began to integrate TCP/IP protocol, so it can't be reinstalled as simple as 98. You can use the netsh command to reset the TCP/IP protocol to restore it to the state when the operating system was first installed. The specific operation is as follows:

Click “Start Run”, enter “CMD” command in the run dialog box, pop up the command prompt window, and then enter “netshintipresetc:resetlog.txt” command and press Enter. The "resetlog.txt" file is a log file used to record the execution result of the command. The parameter option must be specified. The full path of the log file specified here is "c:resetlog.txt". The result of executing this command has the same effect as deleting and reinstalling the TCP/IP protocol.

Tip: The netsh command is a command-line based scripting tool that you can use to configure and monitor Windows systems. It also provides an interactive network shell interface. The format of the netsh command is available. See the help file (you can type "netsh/?" in the prompt window).