Computers can't surf the internet

Computer can not be online solution:


IE can not browse the common reasons and solutions:


One, network setup problem


this reason is more than the need to manually specify the IP, gateway, DNS server networking mode, and use proxy server Internet. Carefully check your computer's network settings.


second, DNS server issues


when IE can not browse the Web page, you can first attempt to access the IP address, if you can access, then it should be a problem with DNS, causing DNS problems may be connected to the network when the DNS error or the DNS server itself problem, At this point 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 normally elsewhere). In the properties of the network, (Control Panel-Network and dialing connections-Local Area Connection-right key property-TCP/IP protocol-Properties-use the following DNS server address). Different ISPs have different DNS addresses. Sometimes it is a problem with a router or network card that is unable to connect to the ISP's DNS service, which allows the router to be shut down for a while, or to reset the router.


Another possibility is that there is a problem with the local DNS cache. In order to improve the speed of Web site access, the system will automatically have visited and obtain the IP address of the site into the local DNS cache, once the site is accessed, it is no longer through the DNS server and directly from the local DNS cache to remove the IP address of the site to access. Therefore, if there is a problem with the local DNS cache, it can cause the Web site to be inaccessible. You can perform ipconfig/flushdns in run to rebuild the local DNS cache.


third, the problem of IE browser itself


when IE browser itself fails, it will naturally affect browsing, or IE can be corrupted by malicious modification will also lead to the inability to browse the Web page. At this point can try to use "Huangshan ie repair Experts" to repair (recommended to the Safe mode of repair), or re ie (such as reinstall IE encountered can not be repeated problems, can refer to: A solution can not reinstall IE)


Four, the problem of network firewall


If the network firewall is set improperly, such as high security level, accidentally put IE into the block access list, the wrong firewall policy, etc., you can try to check the policy, reduce the firewall security level or directly turn off the test to return to normal.


Five, network protocols and Nic-driven problems


IE can not browse, there may be network protocol (especially TCP/IP protocol) or network card driver damage caused, can try to reconnect the network card driver and network protocol.


Six, the hosts document question


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


vii. problems with system documentation


when the system files related to IE are replaced or damaged, it will affect the normal use of IE, you can use the SFC command to repair, WIN98 system can perform in "Run" SFC, and then perform a scan; win2000/xp/2003 performs SFC in "Run"/ Scannow try to fix it. 3lian Material


in which only IE can not browse the Web page, and QQ can be on, it is often due to winsock.dll, Wsock32.dll or Wsock.vxd (VxD only in the Win9x system exists), such as file damage or loss caused, Winsock is constituted tcp/ IP protocol is an important part of the general need to reload the TCP/IP protocol. However, XP began to integrate the TCP/IP protocol, so it is not easy to uninstall and reload as 98, and you can reset the TCP/IP protocol by using the Netsh command to revert to the state of the operating system when it was first installed. The specific operation is as follows:


Click "Start", enter "CMD" command in the Run dialog box, pop-up Command Prompt window, then enter "netsh int ip reset c:resetlog.txt" command will return to, where "resetlog.txt" A file is a log file used to record the results of a command execution, which must be specified, and the full path of the log file specified here is "C:resetlog.txt". Executing this command results in the same effect as removing 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, and it also provides an interactive network shell interface, which is used in the format of the Netsh command, as in the Help file (enter the "netsh/" in the prompt window). ?” can be).


The second workaround is to fix the above file, Win9x use SFC to extract the above files, win2000/xp/2003 use the Sfc/scannow command to repair the file, and when Sfc/scannow cannot be repaired, Try the online release of the repair tool specifically for this issue winsockfix.


Eight, the real time monitoring problem of antivirus software


This is not often seen, but sometimes it is related to real-time monitoring, because now anti-virus software real-time monitoring has added to the content of the Web page monitoring. Give an example: KV2005 will be on the individual machine will lead to IE can not browse the Web page (many friends have encountered), its specific performance is to open the Web page monitoring, a boot on the internet about 20 minutes later, IE will not be able to browse the Web page, then if the KV2005 of the Web site monitoring turned off, everything back , and KV2005 can not be solved after completely reloading. Although not install KV2005 every machine will appear this problem, after all, each machine system is different, the installation of the program is not the same. However, if IE can not browse the Web page, but also pay attention to the anti-virus software to check.


Nine, Application Management Service problem


appear only on the QQ can not open the situation of the Web page, restart after the good. However, even if the restart, open 7 to 8 pages after the page can not open, only on QQ. Sometimes telecommunications will allow you to disable Application Management service, you can solve. The specific reason is unknown.


10, infected with virus-induced


This situation is often shown in the open IE, the IE interface in the bottom left box prompts: Open the page, but no response for a while. Look at the process in Task Manager (go to the method, put the mouse on the taskbar, right-click-Task Manager-process) to see how the CPU occupancy rate, if it is 100%, can be sure, is infected with the virus, then you want to run other programs is simply a suffer. This is to find out which process is consuming CPU resources greedily. After you find it, it's best to record the name and click End If you can not end, you want to boot to safe mode to remove the Dongdong, but also to enter the registration table, (method: Start-run, input regedit) in the Registry dialog box, click Edit-Find, enter the program name, found, click the right mouse button to delete, Then do a few more searches, often can completely remove clean.


has a lot of viruses, anti-virus software is powerless, the only way is to manually delete. 3lian.com


Small row 2005-6-22 02:51 AM





11, there is also a phenomenon also need special attention: is to open the homepage of the website, but can not open the level two link, if so, the processing method is to re-register the following DLL file:


in Start-run input:


regsvr32 Shdocvw.dll


regsvr32 Shell32.dll (Note this command, first do not lose)


regsvr32 Oleaut32.dll


regsvr32 Actxprxy.dll


regsvr32 Mshtml.dll


regsvr32 Urlmon.dll


regsvr32 Msjava.dll


regsvr32 Browseui.dll


Note: Each entry, press ENTER. The second command does not need to lose, after the completion of these commands restart Windows, if found invalid, and then re-enter again, this time enter the second command. Also, if it's a 98 system, it might be easier to download the file to Microsoft's Web site,


: Solution cannot reload IE


sometimes ie out of trouble, want to reload, but the old hint has been installed IE, and can not reload, the general method is to modify the registry of IE version number, this method will generally work, but sometimes changed version number can not be installed, then try the following this small technique to see if feasible:


method One: Open Registry Editor to find Hkey_local_machinesoftwaremicrosoftactive setupinstalled components{89820200- ecbd-11cf-8b85-00aa005b4383}, the right window isinstalled value if it is 1, then change it to 0, and then reload IE try again. (It is highly recommended that you restart your computer, especially the WIN98 system, after modification.) ）


Method Two: Executes rundll32.exe setupapi,installhinfsection DefaultInstall 132%windir% in "Run" The Infie.inf command allows you to reinstall IE from the installation CD, but the disadvantage of the method is that the installed version of IE is the version of the installation CD, not the latest version.





Malicious program cleanup Software and tools:


one. Clear the software.


1. Free software removal.


(1) ad-aware SE Personal (English software):


the world's highest number of downloads, the use of the largest number of free malicious programs to remove software. Ad-aware can scan the system's memory, registry, hard disk partition, mobile hard disk, CD-ROM, etc. to find and remove malware, adware, spyware and some popular Trojans. So that the removal of malicious software to the home page was changed, the system slowed down without cause, and so on, enhance the self-confidence of the Internet users to protect the privacy of the Internet users.


(2) SpyBot Search&destroy:


Spybot-search & Destroy is a tool specifically designed to clean up spyware. Some spyware programs are installed on your computer with shared software, monitoring your computer to run. So far, he has been able to detect more than 10,000 kinds of spyware programs (Spyware), and more than 1000 of them for immunization. Can be said to be a strong complement to antivirus software. And this software is completely free, and has the Chinese language pack support. Can be used at the server-level operating system.


(3) SpywareBlaster (English software):


SpywareBlaster is not a cleanup tool, it can prevent the intrusion of malicious programs. This software does not occupy the memory, does not load with the boot, only need one months to upgrade the database. Can screen now most popular malicious Web site and procedures, including without permission by the user secretly installed 3721 network real name, Baidu Plug-ins and so on. It is strongly recommended that you install it in all systems.





2. Shared cleanup software.


(1) Spy sweeper (English software):


I personally think is the best malicious program Removal Tool, you can find a lot of other software to find malicious programs.





(2) AntiSpyware etrust PestPatrol Anti Spyware (English software): Another excellent malware removal software. ETrust PestPatrol Anti-spyware can detect and remove a variety of spyware to protect your PC from unauthorized access, information theft, and system performance degradation. Spyware, advertising, and other non-viral threats are spreading rapidly, showing a major security and privacy risk. ETrust PestPatrol Anti-spyware can reduce this risk and provide an additional layer of protection for secure Internet connections.


two. Other auxiliary tools.


1, LSP Fix (English version). Specifically used to help repair the 010 options in HijackThis.


2, Winsockfix (English version).


is used to fix the inability to connect and browse problems caused by viruses and malicious programs that modify network settings, and this program restores the operating system's network settings to the default state and applies to all operating systems.


3, CWShredder (English version). CoolWebSearch Trojan Kill tools, the main symptoms of this Trojan has IE homepage has been changed to English Search Web site can not be modified.


4, home kidnap Nemesis-hijackthis (English version). It will be able to kidnap your browser's program to find out! and remove it! Maybe you just browse a website, install a software, found that browser settings have been kidnapped, the general common way of kidnapping than the mandatory alteration of your browser home settings, search page settings, now have this tool, you can be all the full pensionable procedures to grasp out, and then let you determine which program is caused an accident! Kill it! The Chinese version of February 27 further HijackThis more information, and collected and added to the detailed use of the Help file, the Chinese package is also accompanied by another two useful auxiliary tools: Killbox and Copylock, This allows you to fully understand and use HijackThis by simply downloading the package. Detailed use see attached two hijackthis log fine solution "with anti-hijacking general recommendations"


Network Fix Winsockfix