When playing the game teahouse or take-all-you-can-eat bar, the internet speed is very slow and the line is always disconnected.

When you use ADSL to surf the Internet, you will often encounter the phenomenon that the webpage can't be opened, the download is interrupted, or you can watch online, the audio stream is interrupted, qq is dropped, and the game is dropped. We might as well assume that the landlord is using ADSL to surf the Internet. In fact, other ways of accessing the Internet often disconnect the Internet for roughly the same reasons as the following. Let's analyze the reason why ADSL dropped.

First, the wiring problem.

First of all, check the wiring at home to see if the indoor connectors are properly connected and whether the wiring has passed through any interference sources, such as air conditioners, refrigerators, televisions, etc. , and try to keep a certain distance from these electrical equipment. You can also replace indoor lines with network lines with stronger anti-interference ability. Make sure the line is connected correctly. After the telephone line enters the home, it is connected to the junction box and then separated by the voice separator. One line is connected to the telephone and the other line is connected to the modem (marked on the separator). At the same time, ensure the communication quality of the line is good, free from interference, and do not connect other equipment that will cause line interference. And check whether the junction box is in poor contact with the crystal head and whether it is entangled with other wires. If possible, it is best to use a standard telephone line to connect the PC to the twisted pair of ADSL modem. Line is one of the important factors that affect the quality of image browsing. Signal interference sources such as radio transmission towers, welding machines, trams or high-voltage power transformers within 0/00 meters of subscriber cable/KLOC can make users receive clutter offline (copper-clad steel wire has weak shielding and strong signal receiving ability), which will cause strong interference to subscriber lines. The interfered signal often enters from the unshielded downlink part, because the relay cable has a shielding layer, and the interference and influence are very small. If some shielded downlink lines are used in places with strong interference, the speed instability or disconnection caused by interference will be reduced. In addition, the power cord should not be parallel to the adsl line to prevent crosstalk and adsl failure. In addition, there are many other factors that lead to network instability, such as signal interference and software conflict. Mobile phones, which radiate a lot, must not be placed next to ADSL modems, because every few minutes, mobile phones will automatically search the network, and at this time, strong electromagnetic interference is enough to cause the ADSL modems to lose power.

Second, the network card problem

Network cards are generally PCI network cards or onboard network cards. When you choose, you must choose a better quality, otherwise the quality of the internet may be poor. You can use 10M or 10M/ 100M adaptive network card. In addition, many machines * * * like surfing the Internet and use dual network cards, which also causes conflicts. It is also worthy of attention. At this time, you should unplug the network card connected to the LAN or other computers, and only use the network card connected to ADSL for online testing. If the fault returns to normal, check whether there is any conflict between the two network cards.

Third, ADSL modem or network card settings.

At present, modems generally have two working modes, one is the normal mode of using dialing software, and the other is the routing mode of automatic dialing. In normal mode, you don't need to set up a modem, just use the default. The routing mode needs to be set, and the modem comes with flash memory, which can store the account number and password box settings that are automatically dialed when the computer is turned on. The most common method is to set the wrong ADSL modem IP address or set the wrong DNS server. Because for ADSL virtual dial-up users, there is no need to set an IP address, which can be automatically allocated. TCP/IP gateway generally does not need to be set. However, DNS must be set correctly, and you can get the DNS address from the local telecommunications department. In addition, TCP/IP settings are most likely to cause web pages to be unable to browse. Generally, it is set to automatically obtain the IP address, but DNS must be filled in. Others can use the default settings.

Fourthly, ADSL modem synchronization is abnormal.

Check whether your telephone line and ADSL connection are in poor contact, or there is something wrong with the telephone line. Poor-quality phones are particularly easy to drop, but such problems are not easy to find, so you must use a better quality phone line. If you suspect that the splitter or ADSL modem is damaged, please try to connect the external line directly to the ADSL modem without using the splitter. The connection between the splitter and ADSL modem can't be too long, otherwise it can't be synchronized. Excluding the above situation, the synchronization problem can be solved by restarting the ADSL modem.

Fifth, the problem of operating system virus.

In addition to the above-mentioned line conditions, there are also problems with the computer system. For example, the legendary killer caused the LAN to decline. This problem occurs in a large area of the country, and the virus will affect Internet cafes (local area networks) represented by host agents and routers. Legendary killer is a destructive software, which cheats the LAN and virtualizes the gateway address through arp, thus collecting and analyzing the login information of legendary games in the LAN and obtaining user information. Workflow: First, broadcast the local MAC to the LAN by ARP spoofing, so that the workstations in the LAN can be mistaken for gateways. This process will cause the connection between the LAN and the Internet to be broken. Disconnect the game from the server. When the user restarts the game and logs in the account, the account information will not be directly uploaded to the proxy server through the gateway, but will be uploaded to the legendary killer software that is cheating arp. The real user name and password of the account will be obtained by the legendary killer's own decryption means, thus achieving the purpose of stealing the player's account. Attack: The link speed between LAN and Internet suddenly slows down or even breaks down. Online games are disconnected, and after logging in again, the server is not responding. It is recommended to kill virus first; If you have the ability, reinstall the system; If the machine has dual network cards, uninstall one network card; It is suggested that users who are not familiar with computers should not install all kinds of firewall software at will. Incorrect settings will lead to unstable Internet access. Some operating systems may have compatibility problems with ADSL-related components, so you can go to Microsoft to upgrade or repair the system. Conditional can be reloaded. If the software conflicts, try to find out the conflicting software, uninstall it or solve it in other ways.

6. The firewall and IE browser settings are incorrect.

Although ADSL is less likely to be attacked by hackers and viruses, it does not rule out the possibility, especially web viruses and worms. If the virus destroys ADSL related components, the network will be disconnected. If it can be confirmed that the network is still disconnected due to virus damage and attack, it is necessary to check the installed firewall, * * * * proxy server software, Internet acceleration software, etc. After stopping running this kind of software, test it online to see if the speed returns to normal. If the internet is unstable, you can try to turn off the firewall first, test whether it is stable, and then make corresponding settings. In addition, the failure of firewall or IE browser can also lead to normal connection, but the webpage can't be opened.

Seven. Electrostatic problem

Static electricity is an important factor affecting ADSL, and the power supply at home is generally ungrounded, coupled with the interference of various electrical appliances (such as refrigerators and televisions), it is easy to cause static electricity interference, which often leads to ADSL disconnection in use. Please lead out the grounding terminal of the three-core socket and ground it well, which can generally solve the problem of disconnection. General solution: increase the grounding wire to solve the problem of line dropping.

Eight. Software conflict

There are two ways for ADSL to access the Internet: virtual dialing and private line access. At present, ADSL of individual users is mostly virtual dialing. And PPPoE (Point-to-Point Protocol over Point-to-Point Protocol over Ethernet) virtual dialing software has its own advantages and disadvantages. After many tests of different operating systems, if the operating system is Windows XP, it is recommended to use your own PPPOE dialing software, which has less disconnection and relatively improved stability. If you are using Windows ME or 9x, you can use the following virtual dialing software-Enternet, WinPoET and RasPPPoE. EnterNet is commonly used now, and EnterNet 300 is suitable for Windows 9x；. EnterNet 500 is suitable for Windows 2000/XP. When you have problems with a PPPOE dialing software, you might as well uninstall this software and replace it with a PPPOE dialing software. Please be careful not to install multiple PPPOE software at the same time to avoid conflicts. Because telephone line is the main way of broadband access, a virtual channel must be established. If several dialing softwares are mixed, there will be conflicts and network instability. If the software conflicts, try to find out the conflicting software, uninstall it or solve it in other ways. For example, some friends download BT, which will lead to disconnection. The download process may take up too many threads, resulting in disconnection.

In addition, QQ and games are disconnected not only from your own computer, but also from your own server restrictions and server attacks or failures.