Surfing the Internet in any form, if the software and hardware do not meet the following conditions, may lead to the following phenomena: slow surfing speed, inability to browse web pages, jam, inability to surf the Internet, poor signal, signal delay, connection failure, instability, packet loss, high error rate, inability to surf the Internet, disconnection, crash and "unreasonable" interruption; I. Necessary environmental conditions: a. Stable power supply voltage; Effective power line section; Meet the national standard of safety insulation level. B: The drying and ventilation temperature is suitable (if necessary, add a fan or air conditioning system); C: The walls and roofs should be painted to reduce the particle size of dust. D: The transmission part should have a high signal-to-noise ratio. E: network card problem: the network card has appropriate bandwidth and works stably. F: software configuration: use genuine software to keep the system updated frequently; If the user does not need to set an IP address, the system will automatically assign it. If DNS settings are correct. The system is WIN98 or ME. Under DOS, type WINIPCFG to get the DNS domain. WINXP system, IPCONFIG type. The software setting is reasonable; ADSL users: When the local connection is limited or there is no connection prompt, it will not affect the Internet users, because ADSL users dial up the Internet and automatically assign IP. If you don't want it to appear, you can right-click My Network Neighborhood-Properties-Local Connection-Properties-Double-click Internet Protocol (TCP/IP)- Use the following IP address: IP address:192.168.1.120 subnet mask: 20. You can try to delete the TCP/IP protocol and then add it again. H: Influence of humidity: In rainy season or rainy day and areas with high humidity, the insulation of the line is reduced, and the signal level is reduced, resulting in off-line or unstable operation. Humidity will accelerate oxidation, resulting in transmission interruption. One: the influence of temperature: measures should be taken to reduce the working environment temperature of cats, routers and network switches. J: After the network is opened, all the original technical data are used for comparative analysis, fault judgment and location. K: Timely removal of garbage fragments generated by surfing the Internet and regular arrangement and operation of disk C can appropriately improve the running speed. 2. Grounding system: According to the requirements of the specification (grounding device structure GB50 169-92), there must be more than two "independent" grounding electrodes (grounding cannot be shared), and the lead section from the grounding electrodes to the work site is not less than 16 mm2, and the grounding resistance of each "independent" grounding electrode is not more than 5 ohms. The shielding layer of the subscriber line is immediately grounded to reduce interference; Tap water pipes and (N-line) ground wires of electric power should not be used as grounding electrodes, and the ground wires should not be wound. After coated with silver powder conductive adhesive, it should be fastened with screws. When lightning strikes: disconnect all lines connected with the outside world to avoid personal accidents and fire accidents. Three: the system is clean and tidy: people wear clothes not because of the grade of clothes, but because they are clean and tidy; So: a: genuine software, upgrade patches in time; Delete unused files, clean up online garbage in time, regularly defragment and optimize the system structure; B: legal and effective anti-virus software, often upgrade the virus database; Firewall, * * * Internet access software, network acceleration software and other settings are reasonable, and improper settings will also affect users' use. C: Don't put non-running software and other files on the running disk or desktop; If you open some software, you will be disconnected. Uninstall the software. D: Strengthen the monitoring, operation and maintenance of computers (including auxiliary equipment) at ordinary times to ensure that the equipment is clean, well ventilated, the connection contact resistance is as small as possible, the temperature and humidity are moderate, the insulation is good, and the wiring is neat and beautiful. Four: Good link: Check the host and auxiliary keyboard, mouse, speaker, R45 connector of network cable (Category 5 cable), grounding wire, multi-purpose plug-in board for power supply, power cord, etc. It must be (where is the contact resistance? 0? 8 Ω) OK, check whether the connector of the home line and the telephone line plug are in contact (? 0? 8 ω) reliable, in order to reduce the machine line failure; Wiring: balanced and vertical, clear and tidy (no winding). 5. Appropriate receiving level (wireless network card: receiving field strength, optical transceiver: receiving optical power level): wireless users: the receiving field strength level is different due to the different distance between the user terminal and the base station; Therefore, terminal AGC and base station AGC are particularly important. The user's computer should cooperate with the AGC of the operator's equipment to meet the receiving level of the equipment, and the computer can reliably receive useful signals (high signal-to-noise ratio). Six: The greater the out-of-band isolation, the smaller the in-band attenuation, the better: xDSL, broadband, wireless, optical fiber and other users should provide the minimum in-band attenuation (less than 1dB) and out-of-band isolation (more than 60dB). Signal-to-clutter ratio is also greater than 60dB. Pay attention to civilization, surf the internet reasonably and legally, and abide by the regulations of this website, otherwise it will be banned by the website. Eight: In addition to the above reasons, users who play games are disconnected. The main reason is that the program design of the game itself is not perfect, and the other is that it is not carried out seriously according to the rules of the game. As long as the above aspects are well done, not only the current faults can be eliminated; There will be no other problems in the future.