Network failure and skills magazines:
First, there is a dial-up service and a domain management server within DNS proxy failure
company network, use the ping command when dialing, packet loss always occurs . After canceling the DNS proxy, the situation immediately returned to normal. The QQ connection is working properly, but the webpage cannot be opened. Excuse me, this may be what causes?
since canceled after the problem is resolved DNS proxy, DNS proxy or estimate is selected DNS server in question. In fact, no matter which proxy server or firewall is used, as long as the DNS port communication is allowed, the DNS server of the external network can be directly used without using the DNS proxy. In addition, since QQ can be connected, it just can't access the Web site, indicating that there is no problem with the Internet connection, and the cause of the failure is naturally a DNS resolution failure. In fact, QQ can directly specify the IP address of the server without having to go through DNS resolution.
Second, the Internet lead to crashes
my computer is ADSL Internet access. It works fine when not online. As soon as you go online, the computer will soon crash. You can only press Reset to restart. The computer is TCL Ruixiang K3681. Modem is Huawei SmartAXMT800. The system is Windows XP, and it is useless to reinstall the system and network card driver with Star Express 2.0 client. How should solve?
cause the computer to crash for many reasons. The recommended method for the determination of small series provides:
1, let ADSL dial-up connection to the ISP, but do not open IE, QQ is not running Internet applications and the like. If you can run stably without crashing, there is no problem with the Internet connection.
2, if as long as ADSL dial on the crash, indicating that the computer is not compatible with ADSL. It may be a network card or ADSL hardware failure, or it may be a PPPoE protocol or driver software failure. Measures that can be taken include:
* Uninstall ChinaNetClient 2.0 client, use the built-in WindowsXP ADSL dialer.
* ADSL will set routing, instead of using the virtual dial-up.
* replacement card slot, or replacement of the card.
* replace ADSLModem.
3, if the crash when opening InternetExplorer and browse the Web, that is the InternetExplorer or operating system problems, it is recommended to re-install or repair the system.
4, there may be infected with the worm, it is recommended to install system patches and virus firewall.
Third, can not display custom emoticons
my QQ will be "machine card" phenomenon when sending or receiving custom emoticons, like after a few minutes. However, the custom expressions and pictures are still not received by the other party, and others can't open them. After turning off the firewall that comes with Skynet and Windows, it will still not work again. What could be the reason? How should solve?
reason may be the cause of the failure of Internet connection is too slow, the proposed replacement of Internet access or Internet sharing. When a shared Internet connection is made through a proxy server or broadband route of level 2 or higher, the picture will not be received and displayed. It can replace broadband Internet access methods such as ADSL or cell broadband, or cancel the connection sharing mode of agents above level 2, and even try to dial up directly. If the problem is solved, it means that it is a problem with the Internet. After
IV is modified malicious Web site home page
once through a search link to a website, which automatically became my home, and even the Internet Options item in the home has become It was this site and was grayed out. When I use QQ to chat, every time I start talking to people, I will have such a paragraph. "Why are you yelling at me? Where can I mess with you? I hope that you are responsible for your message. Explain to me by yourself, http ://URL of malicious website". Later, the method of manually modifying the registry, modified the StartPage key name in HKEY_LOCAL_USERSoftwareMicrosoftInternetExplorerMain (used to set the default home page), still can not be resolved. How should deal with?
the cause of the failure is infected with the virus scripting vulnerabilities, can use the new version of the antivirus software to remove. Since many viruses set registry recovery in the autorun key, it is not enough to just modify the above key values. You must also view and modify the HKEY_LOCAL_MacHINESoftwareMicrosoftWindowsCurrentVersionRun item to remove unnecessary applications. In addition, it is recommended to upgrade Internet Explorer to 6.0+SP1 and update the system's patches. Need to pay special attention to the system home, if the system is Windows98, be sure to upgrade to InternetExplorer6.0 + SP1, if the system is Windows2000 /XP, you must upgrade the system patch in a timely manner.
As a temporary solution, c can be modified with "Notepad" program: Windowssystem32driversetchosts file, add the following line in it: URL
127.0.0.1 malicious websites Or change the 127.0.0.1 to the IP address of the other default home page.