Analysis of ADSL Modem faults

Source: Internet
Author: User

As the cost of Internet access is decreasing, more and more users begin to use the ADSL Method for Internet access. Although installing ADSL is a simple task, you may encounter a variety of inexplicable problems during use. In order to make it easier for you to use ADSL to access the Internet, the content below will answer some common questions to help you solve problems easily.
1. Why is the Link light in ADSL Modem always flashing?
A: The Link light in the ADSL Modem is blinking, indicating that the signal on the line is not stable. If the Link light returns to normal after a while, it indicates that the flashing status of the Link lamp is caused by the adjustment of some lines in the telecom part. If the Link light remains blinking and cannot be recovered, it indicates that the communication line connected to the ADSL Modem has a fault. At this time, you can check whether the telephone line has a signal, if the line has a signal, it indicates that the telephone line is normal. If the line signal is not detected, it indicates that the line has a problem. The line maintenance personnel must be asked to help eliminate the line fault; if the Link light in the ADSL Modem is still flashing when the line signal is normal, it indicates a port problem. At this time, you can contact the staff of the Telecommunications Department, ask them to reset the network port. Generally, there will be signals to reset the network port. If the above process does not solve the problem, you need to consider replacing the ADSL Modem device again.

2. Why can't I browse webpages normally when the ADSL Modem signal lights are always on and can be normally connected by dialing?

Answer: Since the dial-up connection is normal through the ADSL Modem, it means that the Internet device is not faulty, because once the device encounters a problem, the dial-up will not be successful. Webpage content cannot be opened, which may be caused by network settings. In this case, you can run the ping command to check the IP addresses of the NIC and Modem to check whether the NIC parameter settings are correct. Under normal circumstances, both IP addresses should be pinged, if one cannot be pinged, it indicates that the network device is faulty. If the IP address above can be pinged, or the web page cannot be opened, check the current DNS Network Parameters to see if the DNS server is correctly set. Some users solve the problem through this method. If some users have installed a firewall in the system, you should try to close it. If the above method still cannot solve the problem, check whether it can enter the control interface of the ADSL Modem device. If it cannot enter the configuration interface, it indicates that it is a system problem, you can try to reinstall the system and correctly configure relevant network parameters, including IP addresses and DNS servers. Generally, you only need to reinstall the system and set network parameters, you can access the control interface of the ADSL Modem device, but you can access the control interface of the ADSL Modem device.

3. Why is the traffic signal of the ADSL Modem always in the active state?
Answer: because the signal lights of the ADSL Modem are always on, it indicates that there is signal transmission on the home line. At this time, you should check the status of the LAN lights on the ADSL Modem device. If the LAN lights are not on, it indicates that the connection between the ADSL Modem device and the network card is incorrect. In this case, you can try to change the network card. If you find that the LAN light is always on and cannot dial properly, you can thoroughly uninstall the original dialing software from the system, and then install the dialing software again in the correct way, make sure that the user name and password are correct. If no dial-up connection is available, you need to reset and press on the ADSL Modem device so that all the network parameters of the ADSL Modem can be restored to the default value. On the ADSL Modem, you can find a circular hole with a diameter of about 2mm. Then, when the power is turned on, you can use something like a ballpoint pen core to stamp it in, in this way, you can feel that a button has been pressed, so that the status lasts for more than 10 seconds, and the parameter can be restored to the original factory value. If the parameter cannot be restored to its original state through the reset button, you can open the control interface of the ADSL Modem device and run the "reset to factory default" command to reset the software. Many users usually shut down incorrectly or perform other incorrect operations during operations on the ADSL Modem. For example, if the power cord is directly unplugged without a button being switched off when the ADSL Modem is disabled, it is easy to confuse the internal software of the ADSL Modem, so many faults related to the adsl Modem can be solved through the reset method.
4. Why is access to the webpage very slow when the dial-up connection is normal?

Answer: In general, the users who encounter such a fault are basically 1 MB users, and the download speed is only below 20 KB, while in normal cases, the download speed should be between 80 KB and Kb; to solve this problem, we should ask the telecom engineers to test the line conditions for themselves. If the line is too long to exceed 3 kilometers, the measurement will fail. When you confirm that the line is not faulty, you can use your laptop to access the internet at home to see how fast the download speed is. If you use a notebook to download the webpage, the speed is normal, it indicates that there is a problem with your original computer system. If the speed of downloading web pages from a notebook cannot reach the normal standard, you need to go to the measuring platform to find the port connecting to your home and directly jump the Jumper from the port, then, the download speed is tested on the measuring platform. If the speed is not normal during the testing on the measuring platform, it indicates that the port of the Telecommunications Department is faulty, you only need to replace a new port to solve the problem. If the download speed tested on the measurement station is normal, it means the problem is still on the line in your home; you may wish to consider re-wiring.
5. Why do dial-up connections frequently fail when the signal lights of the ADSL Modem are always on?
A: If frequent disconnection occurs only by accident recently, it may be that the telecommunications department is making line adjustments. You may wish to wait for a few more days. If this problem persists, we need to analyze it in detail. For example, if the Internet is disconnected after two to three hours, I think this situation is quite normal. After all, ADSL is connected to the Internet through telephone lines, therefore, the disconnection is inevitable. If the Internet connection is lost, it indicates that there is indeed a problem with the line. If you cannot solve the problem correctly, I suggest you ask the staff of the Telecommunications Department to come and test the line, if the line is found to be faulty, re-wiring. If the MODEM is faulty, replace the new MODEM.

6. Why is the line automatically disconnected and noisy when a call comes in after successful installation of ADSL?

A: the reason for this fault is that the extension is used in the home, and the telephone line connecting to the extension is not connected through a separator. You may wish to add a separator on the line connecting the extension, if the line is already connected with a separator, you can ask the staff of the Telecommunications Department to check whether there is a problem with the separator. If there is a fault, you should replace the New separator.


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