Judging the fault of the ADSL modem looking at the lamp

ADSL Modem has a CD LED or link led, by looking at the lamp's working status, you can easily identify with the ADSL modem connected to the communication line failure. Under normal working conditions, this led will be on the power supply, soon in the long bright state, if there are other abnormal states, it will indicate that there may be fault on the line, specific performance in:

If the CD or link LEDs keep flashing, it means that the communication signal on the current line is unstable, and if it returns to normal after a while, it indicates that the flashing state of the indicator is caused by the internal line adjustment of the telecommunications company.

If the light keeps flashing and cannot be restored to normal, it means that the communication line is really faulty. At this point you can test whether there is a signal in the phone line, there is a signal that the line work is normal, if the signal is not tested to indicate that the line may be short or open circuit phenomenon, you must ask professional maintenance personnel to help you repair the line failure.

If there is a signal on the phone line, the indicator is still blinking, which means there is a problem with the port. At this point you can check the ADSL line in the household, the need to use the separator is not connected well. Look at the separator before you connect with other devices, such as the use of extension or anti-theft system. If the above problems are all excluded, the state of the indicator does not return to normal, you need to ask the staff of the communications company to reset the network port, in general, when the network port Reset, will produce signals, if not, you can consider replacing a new ADSL Modem.

Of course, here I need to remind you that even if you can use the telephone line to answer the phone, it can not be concluded that the line is certainly no fault, because ADSL signals and telephone signals, not the same channel to use Yo!

　　Identify power failures

Using the power indicator in the ADSL modem, you can simply determine if the supply is faulty. If the ADSL modem in the case of power supply, found that the power LED is not lit, you can determine that the device is the source of the problem, or ADSL power converter failure. At this point, the only way is to contact the sales business or professional repair shop.

　　Identify hardware failures

Using the test or diag LEDs in the ADSL modem, you can see if your device has passed the Self-Test test successfully. In general, the indicator light is just connected to the ADSL modem power, will appear flashing phenomenon, which indicates that ADSL is in the self-test state, once the Self-Test task is completed, the indicator will be automatically extinguished. If the indicator is always in the long light, it shows that the ADSL modem does not pass the self-test, you can turn off the ADSL modem first, and then connect the power to see, or directly press the reset button to see if the fault can be resolved. If the failure is not resolved, it is basically possible to conclude that there is a problem with the hardware device and must be replaced again.

Identify network failures

Using the LAN LEDs in the ADSL modem, you can easily diagnose the network devices and connections that are connected to your computer. Normally, the LED is in the illuminated steady state. If you do not illuminated steady, it indicates that the network connection may be faulted, in particular:

If the LAN LED is not lit under the CD LED or link LED illuminated steady, the network connection between the ADSL modem and the NIC is faulted. At this point, you can try to change another new network card.

If the LAN LEDs are always on, but you are not using ADSL dialing correctly, there may be a problem with the Dial-up software, at which point you can remove it completely from the system and reinstall the Dial-up software correctly and use the correct dial-up username and password. If you can not work, you must press the ADSL modem in the reset button, so that ADSL modem using the default network parameters to work. Note that when you press the reset button, you first find the device on a diameter of 2 mm around the hole, in the condition of power supply, with the core, such as hard things to poke in, you can feel the button was pressed, and must maintain this state for more than 10 seconds, in order to calculate the success of the reset.

If the LAN LED is in illuminated steady state, the ADSL modem is not able to communicate, you must carefully check the connection with the computer network card IP address is correct. Note the IP address of the network card. Be sure to have the IP address of the LAN port of ADSL modem in the same network segment, otherwise it can't communicate normally.