When using ADSL to access the Internet, you may often encounter problems such as webpage disconnection, download interruption, online video, audio stream interruption, qq disconnection, and game disconnection. We may assume that the landlord uses ADSL to access the Internet. In fact, the reasons for frequent disconnection from the Internet in other ways are roughly the same as those below. Next we will analyze the causes of ADSL disconnection.
I. Line Problems
First, check the home line to see if the home connection is connected and whether the line has any interference sources, such as air conditioners, refrigerators, and televisions. Try to keep a certain distance from these electrical equipment. You can also replace the indoor line with a network cable with stronger anti-interference capability. Make sure the connection is correct. Connect the junction box after the telephone line enters the home, and then separate it from the voice splitter. The first line goes through the phone and the first line goes through the MODEM (the separator is marked on ). At the same time, ensure that the communication quality of the line is good and there is no connection to other devices that will cause line interference. Check whether there is poor contact between the junction box and the crystal head, and whether there is any link with other wires. It is best to use a standard telephone line and connect the PC to the twisted pair Cable attached to the ADSL Modem. Line is an important factor in the quality of image Internet access. Signal interference sources, such as radio towers, electric welders, trams, and high-voltage power transformers, which are less than 100 meters away from the user's cables, can enable the user to deprecate and receive weak shielding and strong signal reception capabilities ), strong Interference with user lines. The interference signal usually enters the unshielded offline part, because the relay cable has a shielding layer, which has little interference and impact. If some unblocked deprecation is used in places with high interference, the speed instability or disconnection caused by interference will be reduced. In addition, the power cord cannot be parallel with the adsl line to prevent crosstalk and lead to adsl faults. There are also many other factors that cause network instability, such as signal interference and software conflicts. Do not place this type of things with high radiation on the mobile phone next to the ADSL Modem, because the mobile phone will automatically find the network every few minutes, then the strong electromagnetic interference is enough to cause the ADSL Modem to cut off.
2. Nic Problems
The NIC is usually a PCI Nic or an on-board Nic. When selecting the NIC, You must select the NIC with good quality. Otherwise, the NIC may cause poor Internet access quality. 10 M or 10 M/M Adaptive Nic. In addition, many machines share the Internet and use dual NICs, which is also a cause of conflict. In this case, you should unplug the network adapter that connects to the LAN or other computers and use only the network adapter that connects to ADSL for Internet access testing, if the fault returns to normal, check whether the two NICs conflict with each other.
Iii. adsl modem or Nic configuration problems
Currently, MODEM generally has two working modes: one is the normal mode using the dialing software, and the other is the automatic dialing routing mode. In normal mode, you do not need to set the MODEM. Use the default value. The routing mode needs to be set. The MODEM has its own flash memory. You can save the account and password box settings to enable automatic dial-up upon startup. The most common method is to set the IP address of the ADSL Modem or the DNS server. Because the user of ADSL virtual dialing does not need to set an IP address, it can be automatically allocated. Generally, TCP/IP gateways do not need to be set. However, you must set the DNS correctly. The DNS address can be obtained from the local telecommunications department. In addition, the TCP/IP settings are the most likely to cause the inability to browse the Web page. Generally, the setting is to automatically obtain the IP address, but the DNS must be filled in. Others can be used by default.
4. ADSL Modem synchronization exceptions
Check whether your telephone line is not in good contact with the ADSL connection, or if there is a problem with the telephone line, poor quality calls are particularly prone to disconnection, but such problems are difficult to check, therefore, use a telephone line with good quality. If you suspect that the splitter is bad or the ADSL Modem is bad, try to directly connect the external line to the ADSL Modem without using the splitter. The connection between the separator and ADSL Modem should not be too long; otherwise, the data cannot be synchronized. To eliminate this problem, you only need to restart the ADSL Modem to solve the synchronization problem.
V. Operating System and virus problems
In addition to the above-mentioned line conditions, there are also computer system problems. For example, the legendary killer causes local network disconnection. This problem occurs in a large area across the country. The virus affects both the host proxy and the Internet cafe LAN of the router proxy. The legendary killer is a destructive software that provides ARP spoofing and virtual gateway addresses to collect and analyze logon information of legendary Games in the LAN to obtain user information. workflow: first, broadcast the MAC of the local machine to the LAN through arp spoofing, so that the workstations in the LAN mistakenly think that the local machine is a gateway. this process will interrupt the connection between the LAN and the internet, and disconnect the game from the server. when a user restarts the game and logs in to the account, the account information is not directly uploaded to the proxy server through the gateway, but to the legendary killer software that is conducting arp spoofing. the real user name and password of the Account are obtained through the decryption method of the legendary killer. to steal the player account. attack condition: the connection speed between the LAN and the internet suddenly slows down or even disconnects. the online game is disconnected, and the system prompts that the server does not have a corresponding connection after you log on again. We recommend that you first scan and kill the virus. If you have the ability, reinstall the system. If the machine uses a dual Nic, uninstall a NIC. If you are not familiar with the computer, do not install various firewall software at will, incorrect settings may cause unstable Internet access. Some operating systems may have compatibility problems with ADSL-related components, so that they can upgrade the system at Microsoft or repair the system. You can reinstall it if necessary. If a software conflict exists, try to find the conflicting software and uninstall it or solve it in other ways.
Vi. Incorrect firewall and IE browser settings
Although ADSL is less likely to be attacked by hackers and viruses, it cannot be ruled out, especially webpage viruses and worms. If the virus destroys components related to ADSL, the system may also be disconnected. If it is determined that the software is damaged or attacked by viruses, check the installed firewall, the Internet shared proxy server software, and the Internet acceleration software. After the software is stopped, then test the connection to see if the speed is back to normal. If the Internet access is unstable, You can first disable the firewall and test whether the firewall is stable or not. In addition, firewall or IE browser failure can also lead to normal connection, but cannot open the web page.
7. Static Electricity problems
Static electricity is an important factor affecting ADSL, and power sources in the home are generally not connected to the ground, coupled with the interference of various electrical appliances such as refrigerators and televisions, it is easy to cause electrostatic interference, as a result, ADSL is frequently disconnected during use. Please lead the grounding end of the three-core socket and ground the wire properly. This generally solves the disconnection problem. General Solution: Add a ground wire to solve the disconnection problem.
VIII. Software conflicts
There are two ways for ADSL to access the Internet: Virtual dialing and leased line access. Currently, most of the personal user's ADSL is virtual dialing. However, PPPOE (Point-to-Point Protocol over Ethernet Point-to-Point Protocol) has its own advantages and disadvantages. After tests on different operating systems, if the operating system is Windows XP, we recommend that you use the PPPOE dial-up software, which causes less interruption and improves stability. If you are using Windows ME or 9x, you can use the following types of virtual dialing software: EnterNet, WinPoET, and RasPPPoE. Among them, EnterNet is a commonly used one, EnterNet 300 is applicable to Windows 9x, and EnterNet 500 is applicable to Windows 2000/XP. If you have problems with a PPPOE dialing software, uninstall it and use another PPPOE dialing software. Be sure not to use multiple PPPOE software in the same fashion to avoid conflicts. Because the telephone line is the main method for broadband access, and thus a virtual channel must be set up, if several dial-up software mixed installation will cause conflict, resulting in network and instability. If a software conflict exists, try to find the conflicting software and uninstall it or solve it in other ways. For example, some BT download may cause network disconnection. It is possible that excessive threads are occupied during download, resulting in disconnection.
In addition to the aforementioned computer causes, QQ and game disconnection may also be related to server restrictions and server attacks or faults.
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