宽带掉线的原因及解决方法（The causes and solutions of broadband dropped）

宽带掉线的原因及解决（The causes and solutions of broadband dropped） 宽带掉线的原因及解决方法(The causes and solutions of broadband dropped) The causes and solutions of broadband dropped The use of ADSL online will often encounter the web page not open, download interrupts, or online view, audio stream interrupt, qq dropped, game dropped, and so on. Let's assume the owner is using ADSL to surf the Internet. In fact, other ways of surfing the Internet frequently are the same reason for the following reasons. Let's take a look at why ADSL is dropped. One, line problems First check the line in the home, to see if the room joint connected and the line if after the interference sources, such as air conditioners, refrigerators, television, etc., try to keep a certain distance with the electricity equipment. Also can use the indoor line to use the network line that the anti-interference ability is stronger instead. Make sure the wiring is connected correctly. After the telephone line is entered, the junction box will be connected, then the voice separator will be separated, the first line of the phone, the first line of modems (the separator will be marked). At the same time, ensure the quality of the line communication is good without interference, and no other equipment that can cause the interference of the line. Check the junction box and crystal head for any contact with the wire or not. It's better to have standard phone lines, and double stranded wires attached to PC ADSL Modem. The line is one of the important factors of the quality of image Internet. Distance users within 100 metres of cable radio towers, electric welding machine, trolley or high voltage power transformer, such as signal interference sources, gives users offline received clutter (copper clad steel wire shielding is weak, reception ability), strong disturbance caused to the subscriber line. Interference signals tend to be in the unshielded lower part of the line, because the relay cable has a shield layer, and the interference and effect are small. If you use some shielded lower lines in a noisy place, you will reduce the speed of the disturbance due to the instability or drop. In addition, the power cord shall not be parallel to the adsl line in case of crosstalk, leading to adsl failure. There are also many other factors contributing to network instability, such as signal interference and software conflict. This kind of radiation of mobile phone should not be placed next to ADSL Modem, because every few minutes the cell phone will automatically find the network, when powerful electromagnetic interference is enough to cause ADSL Modem to break down. Two, network card problem Network card is usually PCI card or board card, choose when choosing quality is better, otherwise may cause the net quality is not good. 10M or 10M / 100M self-adaptive network card can be used. In addition, many machines sharing on the Internet, use double card, it is also a conflict also deserves attention, then, should pull up connected to the LAN or other computer network card, only use ADSL network card Internet connection testing, if the fault returned to normal, check two pieces of card if there is any conflict. Third, ADSL MODEM or network card setup problem MODEM generally has two working modes, one is the normal mode of using dial-up software, and one is the automatic dial-up routing mode. In normal mode, you do not need to set up the MODEM, you can use the default. The routing mode needs to be set up, the MODEM has its own flash memory, can set the account, the password box set into the deposit, and the power on automatic dialing. The most common way to do this is to set up the wrong IP address for ADSL Modem, or to set up DNS server incorrectly. Because for ADSL virtual dialing users, it is not necessary to set IP address, automatic allocation can be. TCP/IP gateways generally do not need to be set. But the DNS must be set correctly and the DNS address can be obtained from the local telecommunications department. In addition, the TCP/IP setting is most likely to cause the inability to browse the web page, which is usually set to automatically obtain the IP address, but DNS must be filled in. Other defaults 4. ADSL Modem synchronization exception problem Check your phone line and ADSL connection is bad contact, or a phone line problems, quality is bad phone especially easy to drop, but problems such as bad check again, so be sure to use good phone line quality. If you suspect the separator is bad or ADSL Modem is bad, Try not to use separator and directly access to ADSL Modem. The connection between the separator and the ADSL Modem should not be too long, or it cannot be synchronized. To eliminate the above situation, you can solve the synchronization problem by restarting the ADSL Modem. Five, operating system, virus problem In addition to the line conditions mentioned above, there are also problems with computer systems. For example, the legendary killer caused LAN to drop. The problem is widespread in the whole country, and the virus can affect both the host agent and the Internet bar (LAN) of the router agent. Killer is a legend for the LAN ARP deception, the virtual address of gateway, to collect legendary game login information and analysis in local area network (LAN) and the destructive software. User information is the working process: first of all, the native MAC by ARP cheat broadcasting to LAN, LAN workstation as the machine is in the gateway. This process will result in local area network and Internet connection interruption, make the game with the server disconnected links. To account for the user to restart the game and the landing, account information will not be directly through the gateway to the proxy server, but is uploaded to the ongoing ARP cheat legend killer software. Through the legend killer decryption method, get real user name and password of the account. So as to achieve the aim of stealing players account. Attack condition: local area network and Internet connection speed suddenly slow down or even disconnected. Network game broken links, and log in again after the prompt without a corresponding server. It is recommended to kill the virus first; If you can, reinstall the system; If the machine USES a double network card, uninstall a network card; It is recommended that users who are not familiar with computers should not install any firewall software at will. Incorrect setting will cause Internet instability. Some operating systems may have compatibility issues with ADSL related components so that Microsoft can upgrade the system or repair the system. There are conditions for reloading. If the software conflicts, try to find the conflict software, uninstall it or other methods. Six, firewall, IE browser Settings are not correct While the ADSL is less likely to be attacked by hackers and viruses, it does not rule out the possibility, especially for web viruses and worms. If the virus destroys the ADSL related components, there will also be a discontinuous flow phenomenon. If we can determine from being destroyed by the virus and attacks, also block phenomenon occurs should check the installation of firewall, Shared Internet proxy server software, Internet speed, stop running after this software, and online testing, to see if the speed back to normal. If the Internet is not stable, you can try to turn off the firewall first, test the stability or not, and set up accordingly. In addition, firewall caused or Internet explorer failed, which can lead to normal connection, but can not open the web page. 7. Electrostatic problem Static electricity is the important factors influencing the ADSL, and the power supply in the home is generally not grounding line, plus a variety of electrical appliances (such as refrigerators, TV), it is easy to cause electrostatic interference, the ADSL frequent drops in the use, please put the three core socket wiring and grounding good grounding end, general can solve the problem of drops. General solution: increase the grounding line to solve the problem of dropping. 8. Software conflict ADSL is connected to the Internet in two ways: virtual dial-up and special line access. Now, personal ADSL is mostly virtual dialing. And the PPPOE (point-to-point Protocol Protocol over Ethernet peer-to-peer Protocol) virtual dial-up software has its own advantages and disadvantages. After a variety of tests on different operating systems, if the operating system is Windows XP, it is recommended that it bring its own PPPOE dial-up software, which is less likely to be broken and relatively stable. If you're using Windows ME or 9x, you can use the following virtual dialing software -- EnterNet, wintry, RasPPPoE. Among them, EnterNet is a popular one now, EnterNet 300 applies to Windows 9x; The 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 to avoid conflict. Because telephone lines are the primary means of broadband access, a virtual channel must be set up so that a number of dial-up software can lead to conflicts, resulting in networks and instability. If the software conflicts, try to find the conflict software, uninstall it or other methods. For example, some friends of BT download will cause the network to drop. It is possible to download too many threads and cause broken lines. In addition, the reasons for QQ and game dropped are not only the reasons for your own computer, but also may be related to their own server limitations and server attacks or failures. Find a master, help you directly, you look on the side of OK! Because every problem has its own special case! Wish you soon repair! Some Suggestions for dealing with the lost line: Eliminate the inherent defects of telephone lines In general, in order to ensure stable and reliable data transmission, modem usually according to the actual line status automatically reduced with distal modem connection rate, therefore, if the phone line inner defect problems will appear offline. At this point, check the connection speed of the modem, if the speed is not high but often dropped, the internal defects in the phone line can be seriously checked. First check whether the connection plug of the telephone line is in good contact. If the telephone line is used too long, a new line should be replaced. And as a result of the indoor phone often lead without shielding and easy introduction of interference, and increased indoor telephone line distance and incorrect connection will also affect the quality of line, so first to ensure the phone line away from power lines and other electromagnetic radiation source, and then remove any other equipment on the line (including extension, line, etc.). Now let's try it on the Internet. Does the connection speed and stability of the modem improve? Two, solve the modem oneself problem The modem on the market a lot of more phyletic, types, quality is uneven also, if the modem itself quality problems or the compatibility between different modem is low, can also lead to drop. Because no a modem, and any other brand of modem fully compatible, to avoid the causes of the drop, when buying a modem need to focus on good quality and good scalability, regularly according to the latest driver of modem manufacturer in a timely manner to upgrade, do not think that modem is newly bought is convinced that the firmware and driver is the latest version. The speed and stability of the connection can be improved by improving the compatibility of the purchased modem. 3. Cancel call waiting function If you apply for the telephone call waiting function in the service, the Internet just have a call came in, the modem will think the signal is the remote modem interrupt signal, thus it makes liberal drops. In view of this, only the telecommunications companies are required to temporarily cancel the function. Since many isps have free control functions, that is, when the modem leisure time exceeds a value (e.g., book value is 15 minutes), the server will be caused by the user "kick out" drops, can now contact the ISP, in line with the actual conditions of this kind of problem, and take the corresponding treatment measures (such as improve the efficiency of the use of modem, reduce the communications lines of free time, etc.). Prevent the Internet from being too fast If your 56K modem is easy to drop off at a speed of 56K, you might as well set a speed of 33.6 K to run. A compromise to improve connection speed and stability with reduced speed, especially if the line is poor and leads to a drop in line failure. Try it. 5. Reasonably set the route free time If you have dial-up Internet access, long time did not send any other data, the system in order to cut down the cost of users surfing the Internet, often will be on line more than free setting (generally) for 30 minutes after a certain period of time, the system will be disconnected intelligently and cause drops. Therefore, you can set the appropriate line free value according to your actual situation and needs. Vi. Prevent carrier temporary loss In the process of network operation, if a modem can't distinguish between what is remote modem real dropped, or caused by accidental line interference temporarily lose some carrier, often can also cause drops. At this point, you can solve this type of problem by adding an additional command, S10 = 100. The directive specifies the remote carrier actually lost to the machine hang up after the delay time of (units) for one over ten of a second time, that is to say, if the carrier lost duration longer than the set value, the modem will think that this is the remote modem interrupted the connection, as a result, then drops. By setting the interval to a longer interval, you can avoid the drop of a temporary carrier loss. But some modems won't buy it, even if it doesn't. Can you use ATS10 in a super terminal? Command, can query the original setting value of various modems, modify it appropriately. 7. Prevent DTR signal from being invalid By default, if the DIR (data terminal ready) signal is invalid (including the temporary invalidation of the signal), the modem usually has a broken line. At this point, you can solve this type of problem by using the additional command S25 = 200. This instruction is actually set the DTR signal is invalid drop caused by the time interval value one percent (in seconds) for the unit, that is to say, if the DTR signal is invalid last longer than the set value, it could cause drops. As long as the interval value is set a little longer, the unexpected disturbance can be avoided causing the DTR signal to be temporarily invalid and the resulting drop. 8. Optimize the system As we all know, the default setting of the computer system is not the best setting. Almost all modem manufacturers also take corrective measures in the production process for the problem that the modem is often dropped. For example, by optimizing the modem, the modem will automatically reduce the connection rate of the remote modem according to the actual line condition. Of course, you can also buy or download relevant optimization software to optimize your system and make your system run efficiently and robustly.