What's the matter with the green tour being disconnected regularly every day?

There are many reasons for this phenomenon, and the configuration of users is of course very important; However, the following aspects are also the root causes of this phenomenon. This problem is the result of your passivity. It is better to take the initiative to reduce the existence of problems as soon as possible. You might as well check it carefully according to the following aspects, that is, clearing the road of various equipment, clearing the road = solving your problem. ★ Copyright statement: This answer is "Harmony" original, and no one can steal it! ★ 1: grounding: grounding is mainly to ensure the safety of people and equipment! Grounding is the most basic requirement, especially for analog devices and digital circuits. Grounding can reduce or eliminate interference from all sides, external interference and inter-line coupling of local electrode wiring. Do a good job in grounding shielding of equipment. A lot of interference comes from poor shielding and grounding. Many people only do software, and many interferences are caused by poor grounding or no grounding. This kind of fault is very easy to happen and is easily overlooked by many people. Many equipment damages are directly related to grounding. Non-grounding or poor grounding will lead to error code, delay, packet loss, interruption, disconnection (disconnection, interruption), crash, automatic shutdown, repeated startup (or repeated connection) and other phenomena. Grounding must have more than two grounding electrodes, and the interval between each grounding electrode should be at least10m. There should be no connector for the grounding wire from the grounding electrode to the machine room, and soft copper wire with a cross section of not less than 25mm2 should be introduced into the bus bar of the machine room (no connector is allowed in the middle). The grounding wire should be symmetrically connected with Faraday net to facilitate shunt and scattering, and the connection point with the bus should be coated with silver powder conductive paste. The cross section of the grounding wire from the equipment to the bus should not be less than 4m2, and the bus should be connected to each grounding electrode. Use grounding instruments (instruments above grade 2.5, during the inspection period) for inspection at least twice a year. When checking the grounding electrode, it is strictly prohibited to do it in thunderstorm weather. It is forbidden to use the "N" zero line of water pipes and power lines as grounding; I.e. an independent grounding device. The wires of each equipment are independently connected to the bus bar of the machine room, and it is forbidden to connect the bus bar after series connection. Second, wiring: the wiring process is based on the principle of minimum interference; Wiring should be neat and beautiful, strong and weak signals should be separated, and high and low frequency signals should be separated. Improper wiring causes interference such as line coupling and crosstalk, and the line cannot be wound. It is best to use shielded wire (the shielding layer is reliable and grounded). These parasitic interferences will reduce the signal-to-noise ratio of the computer, making it unable to identify useful signals, leading to intersymbol interference, error code, delay, packet loss, discontinuity, dropped line (short line or interrupt) and crash. 3. Signal-to-noise ratio: When the signal-to-noise ratio is small, the useful signal is covered by noisy stray signals (especially intersymbol interference between symbols), which makes the receiving path unable to correctly extract the useful signal from the noisy signal, and the decision circuit cannot correctly judge the symbols, and packet loss will occur. Serious packet loss is the cause of the delay. Serious delay will mean disconnection (which will cause slowness, delay, repeated startup, disconnection, delay, disconnection, interruption, disconnection, automatic shutdown, collapse, etc.). ). Use a noise meter or level meter to measure whether the noise level is within the allowable range, or use an oscilloscope to observe whether there are stray signals? Is there intersymbol interference? Take measures to eliminate. Signal-to-clutter ratio is also greater than 60dB. Four: Matching: Matching includes level matching and impedance matching. 4. 1 level matching: the received signal cannot be too low. If it is too low, it will not reach the threshold level amplitude required by the receiving path, and the equipment will not work normally; If the level is too high, the front-end circuit of the receiving path will be saturated or burned out. The fluctuation of reception level near the reception threshold will make the computer restart frequently and repeatedly; Therefore, receiving level adjustment is very important. During the operation, the liquid level gauge or oscilloscope should be often used to monitor and adjust the receiving level at the joint within an appropriate amplitude range. 4.2: Impedance matching: The connection point must match the relative impedance. The mismatch of input and output impedance will lead to reflection attenuation, and the signal will not work normally no matter how strong it is. 5. Temperature, humidity, temperature rise (temperature rises gradually after startup) Humidity: In rainy or rainy days and areas with high humidity, the insulation between lines and devices is reduced, and the signal level is reduced, resulting in intersymbol interference, error code, delay, packet loss, interruption, disconnection (short line or interruption), crash, automatic shutdown, repeated startup (repeated connection) and other phenomena of the computer, or unstable work. Humidity will accelerate oxidation, resulting in transmission interruption.

Temperature (especially in summer, the temperature is high during the day and low at night): Since the computer is started, the ambient temperature has gradually increased. When the temperature rises to a certain extent, it will stabilize at this value. The difference between this value and the ambient temperature should not be greater than 25 degrees. As the computer is a semiconductor device, the actual temperature of the device is required to be no higher than 85 degrees. When the chip temperature is close to 80 degrees, measures should be taken to reduce the working environment temperature of cats, routers, network switches and computer equipment. If it is beyond this range, the computer will appear intersymbol interference, error code, delay, packet loss, interruption, disconnection (short line or interruption), crash, automatic shutdown, repeated startup (repeated connection) and other phenomena. The temperature rise (the difference between the actual temperature of the equipment and the ambient temperature is called temperature rise) is less than 25 degrees Celsius, which has a great influence on the normal operation of the equipment, especially when the temperature rise of network switches, routers, computer motherboard chips, network cards, etc. is large, the equipment will not run; Especially for portable (also called notebook) computers, because the design gives priority to size, the temperature rise is difficult to dissipate, and the phenomena such as intersymbol interference, error code, delay, packet loss, interruption, disconnection (short line or interruption), crash, automatic shutdown and repeated startup (repeated connection) caused by temperature rise are most likely to occur. ; The measures are as follows: 5. 1: Place equipment (refer to Hubble, cat, router or network switch, computer, etc.). In a safe place for people, disconnect the power supply first, then open the box cover of the equipment, and use air convection to strengthen contact with the air for natural heat dissipation;

5.2: Equip the equipment with micro fans to increase air convection and conduct forced heat dissipation;

5.3: If you are engaged in IT, I suggest you: after disconnecting the power supply, add a heat sink to the heating part of the equipment.

5.4: After the equipment is disconnected from the power supply, drill a lot of holes up and down the equipment with a 3mm drill bit to strengthen air convection and improve heat dissipation conditions; 5.5: As for the ventilated and dry place of the equipment, it is best to make an insulating heat dissipation bracket (also available in notebooks on the market) to support the natural heat dissipation of the equipment; 5.6: After the computer is used for a long time, the silica gel between the CPU and the heat sink dries, and the CPU will be seriously heated, resulting in packet loss, delay, slow start-up, disconnection, automatic shutdown and crash. Re-coating silica gel can restore normal use.

C: Clean up the garbage fragments and IE cache generated by surfing the Internet in time: As long as you use a computer, you will generate garbage. If it is not cleaned up in time, it will accumulate more and more. If it is not cleaned for a long time, the space for running disk C will become smaller and smaller, more and more chaotic, and finally it will gradually slow down until it collapses; Therefore, arranging and running the C disk regularly can keep the running speed of the computer.

D: synchronize ADSL equipment first: turn off the power supply of the equipment and restart the equipment. 6. Optimize the network structure. When people turn on the computer to surf the Internet, it will produce garbage like eating. If they don't clean the table, wash the dishes and clean the cooker, the computer will gradually show such faults as slowness, jamming, delay, repeated startup and disconnection. So I personally recommend using some gadgets: such as super rabbit, optimization master, master Lu or 360; Develop a good habit of cleaning up the garbage before going offline. 6. 1: Clean up the garbage fragments and IE cache generated by surfing the Internet in time: as long as you use a computer, you will generate garbage. If it is not cleaned up in time, it will accumulate more and more. If it is not cleaned for a long time, the space for running disk C will become smaller and smaller, more and more chaotic, and finally it will gradually slow down until it collapses; Therefore, arranging and running the C disk regularly can keep the running speed of the computer.

6.2. Synchronize ADSL equipment first: restart the equipment after power failure. 7. Use stable and mature software for software setup and configuration; Download the software to official website as far as possible, and do not install 3, irregular software, P2P (resource-consuming) software and infrequent software. Turn off all unnecessary network connections and startup items, such as Thunder BT Donkey. Don't put the software that doesn't run in the running C disk; Update patches in real time. Game software should be downloaded from regular large websites. Pay attention to whether the software is stable. Immature and unstable software will lead to slow, stuck, crash and other failures, especially some popular game software. Some netizens reacted strongly to this. Pay special attention to this kind of software, or delete it immediately. When downloading software, we should pay attention to the security of rogue software inserted into the crisis computer and remove it at any time. Eight: anti-virus software and firewall at least one effective and genuine anti-virus software and frequently upgrade the virus database: firewall settings are appropriate (not too much, too high or too low); Viruses can slow down, crash, disconnect, get stuck, restart and shut down computers repeatedly. Nine: Good connection, contact and insulation. 9. 1 Network cable and crystal oscillator (R45) connector: Are the crystal oscillator connector and socket plugged in (loose)? Contact, okay? What is the contact resistance? Is there dust? Is it oxidized? Is the mechanical lock between the lens head and the seat locked? Is the lock safe? Are the cable and the crystal head pressed tightly and in good contact? The line-to-line insulation resistance of the network cable (using 100V shaking table) should be greater than 20 megohms. 9.2: Turn on the computer, then turn on the device manager, find the network card, stop using it, and then restart it, and you may be fine.

9. 3: Users who frequently surf the Internet should open the equipment shell after power failure for half a year at most (by the way, check whether the internal connection of the equipment is good, whether the memory stick is loose, and whether the contact between the memory stick and the card slot is good? Is the plug-in loose? Is it tight? Whether the connection point is firm and the contact is good), clean the dust inside the equipment. ★ Copyright statement: This answer is "Harmony" original, and no one can steal it! ★ X: Is the power supply stable? Is the AC voltage fluctuation within the allowable range? Is the ripple coefficient after A/D conversion of power supply qualified? Is the temperature rise of power supply abnormal? Does the voltage stabilizing characteristic meet the technical index? Do the voltage stabilizing characteristics and ripple coefficient meet the technical indexes under rated load? Overvoltage (if you want to feed the child, you will die), low voltage (if you want to feed the child, you will be malnourished), excessive voltage fluctuation (if you want to feed the child, you will be hungry), overcurrent and fever will cause the overheating protection action to cut off and the equipment will quit running (that is, it will cause slowness, delay, repeated startup, delay and disconnection). Eleven: The button cell of the motherboard has insufficient or no power, so it won't start or cause other faults. Twelve: ADSL users: Multiplex computer signals with telephone lines, and pay attention to the influence of off-hook, on-hook and ringing on computers; Because both computer and telephone signals are transmitted (multiplexed) on telephone lines, it is necessary to provide a certain degree of isolation (greater than 60DB) and a certain degree of defense (greater than 60db) between them, especially if it is irregular, which may affect the use of computers. 13. Timed failure: When the equipment fails at a fixed time, it is necessary to carefully check whether there are large-scale factories or large-scale electrical equipment startup, welding and other startup equipment around it and between its transmission paths. As long as you follow the above seriously and stick to it often, your equipment will run smoothly and your mood will be comfortable; A low-profile computer can also satisfy you; Otherwise: the computer with higher configuration will fail frequently; Dress like a man (sketch: Peisi Chen among the good guys and bad guys: No matter how good clothes you give him, he won't be up to grade! ), clothes are not high or low, just clean. No matter how tall your computer is, if you don't use it according to the safe maintenance and use of the computer, you will have frequent failures and accidents. Many failures are man-made, everything depends on man-made! ★ Copyright statement: This answer is "Harmony" original, and no one can steal it! ★

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