Common ADSL Broadband faults and solutions (1)

Most of ADSL hardware faults are caused by connection looseness, network cable disconnection, Hub damage, and computer system faults. Generally, you can locate the problem by observing the indicator. In addition, the voltage is abnormal, the temperature is too high, and lightning strikes are also prone to faults. If the voltage is unstable, it is best to provide small-Power UPS for the equipment. The MODEM should be dry and ventilated to avoid water flooding and clean. In the event of thunderstorms, unplug the MODEM power supply and all connections. ADSL Fault Locating requires some experience. The general principle is: Pay attention to the indicators including power indicators, data indicators, Nic indicators) and error information, first hardware MODEM and nic settings) after the software dial-up software), first internal and then external, first local and then the Internet, full check before reporting.

1. The line is virtualized due to multiple user plugging.

Reconnect the cable to reinforce or replace the RJ-11 and RJ-45 wire with insulating tape

2. External line faults

Report 112 and external team repair

3. Power Supply Block or modem burned out

Check whether the user's power supply is normal and whether there is a ground wire.

4. HBPPPOE software cannot be used normally. The pppoe icon is changed to a blue narrow bar.

Due to software conflicts, you can re-install HBPPPOE software or activate (check) the connection settings in the software menu to solve the problem.

5. Win XP OS

Windows xp OS cannot be installed with HBPPPOE, but must be installed with the dial-up software provided by Windows xp OS. the method is as follows: start-control panel-network or internet connection-network connection-create a new connection in the network task-select the first option to connect to the internet-select the second option to manually set my connection-select the second requirement connect by username and password-enter the name and password-complete

6. incorrect user name. The complete user name is abh ***** @ adsl or cnc ***** @ adsl.

7. Nic disabled

If you use Win Me, Win 2000, Win NT, and Win XP, you do not need to restart the computer to change the network properties. As a result, some users mistakenly disable the NIC and cannot access the Internet.

8. Packet Loss in Internet cafes

No packet loss occurs when data is transmitted. If data is transmitted, packet loss occurs.

9. Virus

Install the firewall, regularly eliminate viruses, and update the virus database in real time

10. Registry

The computer registry is changed because some users access illegal websites and cannot access the Internet. solution: restore the Registry (retrieve and recover the Registry file from the Internet, copy the file with a floppy disk, and overwrite the original file) or restart the computer and switch to the DOS mode, type scanreg/restore, and press Enter.

11. Enter a website address to open the webpage, but enter an IP address to open it.

DNS Value Setting problem. The current DNS used is 202.99.166.4 202.99.160.68.

12. Slow Internet access

There are many reasons for slow Internet access, including:

1. The customer's next household line is a core line. There are too many line connections, poor contact and serious oxidation of the joints. This results in low transmission quality and high signal attenuation, affecting the Internet access speed;

2. the Modem chip is overheated because it does not shut down for a long time. As a result, the performance cannot be properly played and the speed of Internet access is affected. In particular, if the Modem is automatically dialing, the Modem may crash and fail to access the Internet.

3. Poor contact between devices and telephone lines and network cables affects the user's Internet access speed. Whether the interface between the telephone line and the voice splitter is in good contact, and whether the interface between the Modem and the NIC is in good contact.

4. users' computer OS faults and online software usage also affect users' Internet access speed. Whether the NIC of your computer runs normally, whether the driver is correctly installed, whether the TCP/IP protocol is correctly installed, whether multiple firewalls are installed, and whether the proxy server is set, whether to run online antivirus software at the same time.

Troubleshooting: Based on the above reasons, check the user's line, connector, Modem Hardware and settings, and the hardware installation and software settings of the user's computer to eliminate faults.

13. The local downloading of ADSL should be above 1 M. Why is it 100 ~ Between kb?

Rate unit problem. The maximum number of Modem downloads for 56 K is 5 ~ 6 K. The unit of 56 K is bit, And the download speed is byte. 1 byte = 8bit. Therefore, when the download is 1.6 kb, it actually reaches Mbit, which is quite fast.

14. Why does ADSL sometimes fail to access the Internet normally?

ADSL is a Transmission Technology Based on twisted pair wires. Twisted Pair wires Tangle two insulated copper wires with a certain law, which can effectively resist external electromagnetic interference. However, most of the telephone lines on the market are parallel lines. Many lines from the telephone company's junction box to the user's telephone lines use parallel lines, which is very unfavorable for ADSL transmission, too long non-twisted pair wires may cause unstable connections, LINK or WLK flashing, and thus affect the Internet access. Because ADSL overlays high-frequency digital signals on the low-frequency voice of common telephone lines, the addition of any device in the connection from the telephone company to the ADSL filter will endanger the normal transmission of data, therefore, do not connect devices such as phones and phone guard before filters.

15. After installing the ADSL Broadband Network, the ADSL will be automatically disconnected every few hours. It is said that this is a normal phenomenon. Do you know if it is true?

Indeed, if no data is transmitted within a certain period of time, ADSL will automatically stop virtual dialing, resulting in disconnection. This is mainly because the network bandwidth is not wasted. If you don't want this to happen, you can start some real-time online software such as QICQ ).

16. Why is my ADSL data traffic too large to crash?

We generally think that this is the quality or compatibility of the network card, especially the old ISA bus 10 m network card, because PPPoE is a relatively new technology, this type of network card compatibility may have problems, and the speed is slow, cause the final line of the conflict to be deadlocked or even crashed.

17. Why is my ADSL often disconnected?

This involves many problems, including ISP access server faults, line faults, line interference, adsl modem fault fever, quality, compatibility), slow Nic speed, and old driver program, in this case, we recommend that you perform the following checks: The ADSL telephone line connection is secure and far from the power cord and high-power electronic equipment. No telephone extension or fax machine can be installed between the ADSL entry line and the separator, correctly install the splitter and replace the old isa nic with a 10 M/m pci Nic and the latest driver to ensure sound heat dissipation of the adsl modem. Finally, contact your ISP.

18. dialing software conflict

There are two ways for ADSL to access the Internet: virtual dial-up and leased line access. Currently, most of the personal user's adsl uses the former. PPPOE virtual dialing software has its own advantages and disadvantages. If windows xp is used, PPPOE dialing software is recommended, with fewer disconnection and higher stability. If it is WINDOWS 9X, you can use ENTERNET 300 and ENTERNET 500 for WINDOWS 2000. If you have any problems with a dialing software, try other dialing software.