【 Weak current College 】 58 species of network failures and their solutions (1)---Power By 【 China power house network 】

1. failure phenomenon: the network adapter (NIC) settings are in conflict with the computer resources.

Analysis, excluded: NIC resources by adjusting the IRQ and i/o values to avoid computer-other resources conflicts. In some cases also by setting the motherboard jumper to adjust and other resource conflicts.

2. the symptoms: Internet LAN other clients in the "network places" can see each other, and only a computer who can not see it, it can not see the other computer. (Premise: the Internet's LAN through a HUB or switch into a star network)

Analysis, troubleshooting: check this computer system is working; check this computer's network configuration; check this computer's network connection is working properly; check this computer's network card settings and other resources are there conflicts; check the network cable is disconnected; check the network cable connector contact correctly.

3. failure phenomenon: Internet LAN in two segments, one of the network segment of all computers are not on the Internet. (Premise: the Internet's LAN through two HUB or switch to connect two network segments)

Analysis, excluded: two segments of the route is broken or trunk ends bad places. Check the server settings on the network segment.

4. symptoms: Internet LAN in all the computers in the "network places" can see each other. (Premise: the Internet's LAN through a HUB or switch into a star network)

Analysis, troubleshooting: check the HUB or switch is working.

5. failure phenomenon: Internet LAN a client in the "network places" can see the server, but is not on the Internet. (Prerequisite: server refers to the proxy Internet LAN other aircraft on the computer on the Internet, following the same)

Analysis, troubleshooting: check the client TCP/IP protocol settings, check the client in the IE browser's settings, check the server for the client's settings.

6. failure phenomenon: Internet cafes throughout the local area network on all computers are not on the Internet.

Analysis, troubleshooting: Server system is working; the server is off line; the modem is working; Central Office work is normal.

7. failure phenomenon: Internet LAN in addition to the server can access other clients do not have access to the Internet.

Analysis, troubleshooting: check the HUB or switch is working; check the server and the HUB or switch connection network components (including: network card, network cables, connectors, network configuration) is working; check server proxy surfing software for normal startup run; setting correctly.
8. failure phenomenon: a dial-up operations, MODEN no dial voice, always connect the light on the Internet, MODEN nor Flash.

Analysis, excluded: the phone line is busy; then the server connection MODEN (including: wiring, connectors) is normal; if the normal telephone line, there is no noise disturbance; dial-up network configuration is correct; MODEN configuration settings are correct, check the dial-tone in tone or pulse mode is normal.

9. trouble phenomenon: the system cannot detect MODEN (if MODEN is normal).

Analysis, excluded: reinstall again MODEN, took note of the communication port in the correct location.

10. failure phenomenon: the Internet connection is too slow.

Analysis, troubleshooting: Check Server system settings in the "dial-up networking" port connection speed is the maximum value is set; lines are functioning; you can optimize the settings of the MODEN to increase connection speed; by modifying the registry can also improve Internet access speeds, while the Internet is a lot of the client; if so many, but the connection speed is too slow is normal.

11. failure phenomenon: on the computer screen appear "error 678" or "error 650".

Analysis, excluded: the General what you dialed server line is busy, busy, temporarily unreachable, you can enter a post-session continue to redial.

12. failure phenomenon: on the computer screen appear "error 680: no dial tone. Please check your modem is properly connected to the phone line. "Or" Thereisnodialtone. MakesureyourModemisconnectedtothephonelineproperly。 "Prompt box.

Analysis, excluded: testing the modem is working properly and that it opens; check whether the normal telephone lines, is properly plugged in to the modem connector is loose.

13. the failure phenomenon: on the computer screen appears "TheModemisbeingusedbyanotherDial-upNetwordingconnectionoranotherprogram. Disconnecttheotherconnectionorclosetheprogram, andthentryagain ".
Analysis, troubleshooting: check to see if another program is using a modem, check the modem and port for the conflict.
14. failure phenomenon: the computer appears on the screen "Thecomputeryouaredialingintoisnotanswering. Tryagainlater ".

Analysis, excluded: telephone system or line is busy, dial later.

15. failure phenomenon: on the computer screen appears "Connectiontoxx.xx.xx.wasterminated.Doyouwantto reconnect?" In the prompt box.

Analysis, excluded: phone line interrupt enable dial-up connection software and ISP host connection is broken, try again later.

16. trouble phenomenon: the computer appears on the screen, the "ThecomputerisnotreceivingaresponsefromtheModem.CheckthattheModemispluggedin, andifnecessary turntheModemoff, andthenturnitbackon".

Analysis, troubleshooting: check the modem's power is turned on; check with your modem connection cable is properly connected.

17. failure phenomenon: the computer appears on the screen "Modemisnotresponding".
Analysis, excluded: indicates that the modem does not answer; checking the modem's power is turned on; check with your modem connection cable is properly connected; modem is damaged.

18. trouble phenomenon: on the computer screen appears "NOCARRIER" tips.

Analysis, troubleshooting: indicates that no carrier signal. This isa non-graceful shutdown of the modem or telephone line failure; check with your modem connection cable is properly connected, check the modem's power is turned on.

19. the failure phenomenon: on the computer screen appears "Nodialtone".

Analysis, excluded: indicates no voice dialing; check your phone line and modem is properly connected.

20. failure phenomenon: the computer appears on the screen "Disconnected" when prompted.

Analysis, troubleshooting: indicates that terminates the connection; if the prompt appears in the dial-up, check the modem's power is turned on; if the tip is to use the process, check the phone is in use.
21. the failure phenomenon: on the computer screen appear "ERROR" in the prompt box.

Analysis, error information is excluded:; modem works properly and that the power is turned on; the executing command is correct.

22. failure phenomenon: on the computer screen appears "Anetworkerroroccurredunabletoconnecttoserver (TCPError: Noroutertohost) Theservermaybedownorunreadchable. Tryconnectingagainlater "when prompted.

Analysis, troubleshooting: indicates that a network error, it may be that the TCP protocol error; there is no route to host or the server is shut down and cannot connect, then only try.