ADSL device has a CD LED or link led, the normal operating conditions, the light will be on the power, soon in the illuminated steady state, if there are other abnormal state, such as the light has been flashing non-stop, it means that the communication line is really faulty. At this point you can test whether there is a signal in the phone line, 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 the phone line has a signal, 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.
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
With the power led in the ADSL device, you can simply determine if the supply is faulty. If the ADSL device is plugged in and the power indicator is not lit, it is possible to determine that the power supply for the device is out of question.
Identify hardware failures
Using the test or diag LEDs in the ADSL device, you can see if your device has passed the Self-Test test successfully. In general, the indicator light is just connected to the power of the ADSL device, will appear flashing phenomenon, which indicates that ADSL is in the self-test state, once the Self-Test task is completed, the LED will be automatically extinguished. If the LED is always in illuminated steady state, it indicates that the ADSL device did not pass the self-test successfully.
Identify network failures
With the LAN LEDs in the ADSL device, 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 illuminated steady of the CD or link LEDs, the network connection between the ADSL device 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 do not use ADSL dialing correctly, there may be a problem with the dial-up software, and you can remove it from the system completely and reinstall the Dial-up software correctly. If you can not work, you must press the reset button in the ADSL device, let ADSL use the default network parameters to work. Note that when you press the reset button, you first find a hole in the device diameter of about 2 mm, in the condition of power supply, with the hard things such as the core poke in, and must maintain this state for more than 10 seconds, in order to calculate the success of the reset.
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