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Common ADSL error codes Various web page error codes Explanation (400.404.504, etc.)
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For example, the codes of common errors are Windows system error codes, ADSL error codes, QQ error codes, Canon error codes [1].
Common ADSL Error Codes
Some Simple Ways to Deal with Error 678/651/815
First of all, you can suggest the user to try to reboot the PC (computer) or MODEM to rule out the occasional fault caused by the user's PC or MODEM.
View modem light situation:
First step: check whether the power light is normal, stable bright to the second step, not bright, the user may forget to open the MODEM power switch, plug the power cord or power regulator loose. Guide the user to adjust, if still not work, it is a bad MODEM;
Step 2: Check whether the DSL light is normal. If the stability of the light is transferred to the third step, if the DSL light has been flashing, indicating that the ADSL line is connected or has been connected to the line, this is a line problem, the most common one is the user's separator into the line with the wrong port to answer the phone, then you can guide the user to check the separator, switching the wiring port, and then check the indoor phone line connector is not in good contact, or to abolish the separator, directly into the home line into the modem, the user can be guided to check the separator, and then check the indoor phone line connector is poor contact, or cancel the separator, directly to the Incoming line into the modem, and then restart the MODEM, if still can not solve the problem out of a single check the outside line.