处理电脑断网 掉线的几个常规方法（Several conventional methods for dealing with disconnection of computer network）

处理电脑断网 掉线的几个常规方法（Several conventional methods for dealing with disconnection of computer network） 处理电脑断网 掉线的几个常规方法(Several conventional methods for dealing with disconnection of computer network) . With the computer off the network / dropped several conventional methods of 2009-02-21 21:17:24| classification: computer skills: | | label font and subscription. First, check whether the cable is loose For the majority of broadband users, ADSL cat connected wireless router net is most common when dropped the case, we should first consider the problem of line. Because the telephone line is too long, too many joints, or some source of interference is likely to lead to dropped, there are poor, do not meet the standards of the cable will often lead to network instability, so when dropped, should first check the network interface is loose. If you find the network interface is in good condition, check the problem of the power signal. Two, the power signal is always bright If the power signal is not lit, first of all to troubleshoot the power problems. If the power supply is unstable due to the power grid, the ADSL Modem itself power problems. Touch ADSL Modem shell by hand, feel very hot, at this time it might be ADSL Modem temporarily cool off until after the start, or place it to the ventilation position, it can also eliminate the fault line. Three, check whether the data signal is normal If the data signal does not light, it is likely that line to have open circuit or short circuit phenomenon, and then through the telephone test, to see whether the line is normal, if not normal, can help technical personnel ADSL service providers to solve this problem. If the data lights flashing, it is likely that the line contact caused by bad, you have to check whether the extension, the connector is firm, ADSL connection line is too long, etc.. If checked according to the above steps, the data signal lamp is still not bright, indicating that the fault has nothing to do with the line, continue to look for other reasons. Four, the network card signal is stable Under normal circumstances, the computer network card through the network cable and ADSL Modem connection, its signal lights should continue flashing or constant. If the network card lights appear unstable state, that is not shining or not flashing, it is likely that the connection between the network card and the network fault. In addition, you need to check whether the network card is loose, the installation of network card driver is correct, whether the network card resources conflict, whether the cable connector loose. If still can not resume normal, indicating that the fault is not caused by the network card or network cable. Five, the network address can not conflict If the IP address of ADSL Modem conflicts, or the DNS server address is set incorrectly, it will cause ADSL to be dropped. If you're a virtual dial-up user, you don't have to set your own IP address, so you can just assign it automatically. If you use a fixed IP address, you must check the IP address of other workstations in a network with the IP address of the conflict, but also to check the DNS address is set correctly, the TCP/IP parameter is changed. If you still can't eliminate the fault after the completion of the investigation, you have to find the reason from the dial up software. Six, check whether the dial-up software works properly First use the mouse to click the desktop in the dial-up procedures, the implementation of broadband dial-up connection operation, if found the system "in the dialing process cannot connect error, you can click the tooltip window in the retry button, under normal circumstances can re dial 3 to 5 times will be able to solve the problem. If we can't connect again 3 to 5 times, we can consider the broadband "cat" power closed for a period of time and then open, and use the Ping command to test the broadband "cat" IP address, If you can Ping broadband "cat" IP address, then re dial operation, I believe that most of them can solve the problem. If you still can not successfully dial, may wish to restart the computer system, and then repeatedly dial; if such efforts can not solve the problem, it is likely that the modem telecommunications room locked user account up, this time we can only contact the telecommunications staff to help unlock. If you can access the Internet without modifying the TCP/IP parameters, now you can delete the TCP/IP protocol, and then reinstall and correct settings, so that you may be able to solve your dropped fault. Seven, excessive load One reason is that large load broadband dropped, as we often use BT, such as broadband network sharing some of the ongoing BT download, is likely to occur with large loads, the router drops, this is the case in the dormitory or small office network. In order to avoid this situation, BT can limit the download traffic and bandwidth, in order not to affect the normal Internet access for other users, especially like CM, FTTX+LAN such shared broadband, P2P download crazy is the cause of network paralysis or frequent disconnection. Of course, we can also change a connection station quickly to see whether the connection speed is normal, or reduce the download burden. Eight, share the number of broadband machines Due to the limited number of routers in general routers, wireless routing is the same. When the wireless router with too many machines will cause excessive network load, resulting in crashes, dropped the problem. In order to avoid the above, we can limit the number of machines in wireless routers with limited processor and cache performance. Nine, the virus causes the Internet to drop Especially in the student users, is generally a router connected to several machines, so the virus attack probability will be great, so effective in preventing the virus will avoid disconnection or even a router failure more serious. For experienced users, when it is found that even access to LAN or conventional operations are slowing down, it will be aware that this is likely to be caused by the virus. At this point, we can use the new version of antivirus software for killing, or PING gateway to view the flow method to locate the problem. --------------------------------------------------------------------- Several reasons and solutions of network dropping frequently The use of ADSL will often encounter web pages can not open, Download interrupt, or online video and audio stream interruption, QQ dropped, game dropped and other phenomena. We might as well assume that the landlord is using ADSL to surf the internet. In fact, the reasons for the frequent drop of the Internet in other ways are similar to the following reasons. Let's take a look at the reason why ADSL dropped. First, the line problem First of all, check a home line, see whether the house connector is good, whether the line through what interference sources, such as air conditioning, refrigerators, television, etc., try to maintain a certain distance with these electrical equipment. You can also use your own indoor line to replace the cable with stronger anti-interference ability. Make sure the line is connected correctly. The telephone line is connected to the junction box after entering the home, and then separated to the voice separator, the first line calls and the first line goes MODEM (marked on the separator). At the same time, ensure the good quality of line communication, no interference, no connection to other equipment that will cause line interference. Check whether the junction box and the crystal head are in bad contact and whether they are winding together with other wires. Conditional best use standard telephone line, PC connect ADSL Modem with twisted pair. The line is one of the important factors of the quality of image access to the internet. Signal interference sources, such as radio transmitting tower, welding machine, trolley or high voltage power transformer, within 100 meters of the user's cable line, The system can make the users receive the clutter from the receiving line (the shielding of copper clad steel wire is weak and the ability of receiving signal is strong), which can cause strong interference to the subscriber line. The interfering signals are often unshielded, and the offline part enters, because the relay cable has shielding layer, and the interference and influence are very small. If you use a few shielded lines in the large interference area, it will reduce the speed of instability caused by interference or dropped phenomenon. In addition, the power line can not be parallel with the ADSL line, so as to prevent crosstalk, leading to ADSL fault. In addition, there are many other factors causing network instability, such as signal interference and software conflict. Mobile phones, such as radiation things must not be placed on the side of ADSL Modem, because every few minutes the phone will automatically find the network, when the strong electromagnetic interference enough to cause ADSL Modem cutoff. Two, the network card problem Network card is generally PCI network card or board network card, choose when to choose good quality, otherwise it may cause poor quality of the internet. 10M or 10M/100M adaptive NIC is available. In addition, many machines to share Internet access, using a dual card, which is the cause of conflict is also worthy of attention, then, should pull up connected to the LAN or other computer network card, only connect to the ADSL Internet card test, if the failure to resume normal, and then check the two network cards have no conflict. Three, ADSL MODEM or network card settings Now, MODEM generally has 2 modes of work, one is the normal mode of using dial-up software, and the other is the automatic dial-up routing mode. In the normal mode of operation, no need to set the MODEM, the default can be used. And the routing mode needs to be set up, MODEM has its own flash memory, you can set the account, password box stored in the boot automatically dial. The most common method of this method is to set the wrong IP Modem address of ADSL, or to set the DNS server incorrectly. Because for ADSL virtual dial-up users, there is no need to set the IP address, automatic allocation can be. TCP/IP gateways do not need to be set up in general. However, the DNS must be set correctly and the DNS address can be obtained from the local telecommunications department. In addition, the TCP/IP settings are most likely to cause the situation can not browse the web, generally set to automatically get the IP address, but DNS must fill in. Other defaults can be used Four, ADSL Modem synchronization exception problem Check your phone line and ADSL connections are bad places, or telephone line problems, poor quality of the phone is particularly likely to cause dropped, but this problem is not good, so be sure to use good quality telephone line. If the suspect separator is bad or ADSL Modem is bad, try not to use the splitter to access the external ADSL Modem directly. Separator and ADSL Modem connection should not be too long, otherwise it can not be synchronized. Excluding the above situation, the synchronization problem can be solved as long as the ADSL Modem is reset. Five, operating system, virus problem In addition to the line conditions mentioned above, there are also computer system problems. For example, legendary killers cause local area networks to drop. The problem is widespread in the country, and the virus has an impact on the host agent and the Internet cafes (local area network) of the router proxy. Legend is a killer on the LAN ARP spoofing, virtual gateway address, the legendary game to collect LAN login information and analysis to obtain user information damaging software. Working process: first, the MAC through the ARP Spoofing broadcast to the LAN, the LAN of workstations mistaken for machine is the gateway this process will cause the LAN and the Internet connection is interrupted, and make the game server disconnect the link. To restart the game and user account login, account information and not directly to the proxy server through the gateway upload, but being uploaded to ARP deception legend killer software. By decrypting the legendary killer of its own means, real the username and password will be the account. So as to achieve the purpose of attack. Steal game player account status: LAN and the Internet link speed suddenly slow down or even off. The link is disconnected from the online game, and the server has no corresponding after landing again. Firstly, killing the virus; if you can reinstall the system; such as machine using a double card, uninstall a network card; suggestions for computer is not very familiar with the users don't install firewall software, set incorrectly will cause the instability of the internet. Some operating systems may have compatibility issues with ADSL related components, so that Microsoft can upgrade the system, or repair the system. Conditions can be reloaded. If the software conflicts, try to find the conflict software, uninstall or other methods to solve it. Six, firewall, IE browser settings wrong Although ADSL is less likely to be attacked by hackers and viruses, it does not exclude possibilities, especially web viruses and worm viruses. If the virus destroys the ADSL related components, there will be a disconnection phenomenon. If you can determine by the destruction of the virus and attack, you should check the installation of the firewall, Internet sharing software, internet proxy server software also accelerated the occurrence of drying phenomenon, stop the operation of this kind of software, then the internet tests, see whether the speed of return to normal. If the Internet is unstable, you can try to shut down the firewall, test the stability or not, in the corresponding settings. In addition, firewall causes or IE browser failure, can also lead to normal connection, but can not open the web page. Seven, electrostatic problems Static electricity is an important factor to affect the ADSL, and the power house is generally not ground, plus a variety of electrical appliances (such as refrigerators, TV) interference, it is easy to cause the electrostatic interference, resulting in the use of ADSL frequently dropped, please send the three core socket grounding end of the lead wire and well grounded, general can solve the line problem. General solution: increase grounding wire, solve the problem of drop line. Eight, software conflict problem There are two ways for ADSL to access Internet: virtual dialing and private access. Now most of the ADSL of the individual users are virtual dialing. And PPPOE (Point-to-Point Protocol over Ethernet peer to peer protocol) virtual dial-up software has its own advantages and disadvantages. After many tests in different operating systems, if the operating system is Windows XP, it is recommended to use its own PPPOE dial-up software, the phenomenon of less flow, stability is also relatively improved. If you use Windows ME or 9x, you can use the following virtual dial-up software --EnterNet, WinPoET, RasPPPoE. Among them, EnterNet is a more commonly used now, EnterNet 300 applies to Windows 9x; EnterNet 500 applies to Windows 2000/XP. When you have a problem with a PPPOE dial up software, you can uninstall the software and replace it with another PPPOE dial-up software. Please be careful not to install multiple PPPOE software at the same time, so as not to cause conflict. Because the telephone line is the main way of broadband access, and so we must set up a virtual channel, if several dial-up software loading can lead to conflict, resulting in network and its instability. If the software conflicts, try to find the conflict software, uninstall or other methods to solve it. For example, some friends may cause the network to drop. It may take too many threads to break when downloading. In addition, the reasons for QQ and game dropping are not only related to your own computer, but also with their own server restrictions and server attacks or failures.