Troubleshooting of four kinds of ADSL disconnection faults (1)

I believe everyone is using ADSL. However, there will also be some faults, especially the problem of ADSL disconnection. We have summarized four problems to help you analyze and handle them. ADSL and asypolicric Digital Subscriber Line are Asymmetric Digital user loops. don't get me wrong. We are not going to introduce ADSL here, let alone discuss its future. We only do what you are most concerned about-how to solve the problem of frequent ADSL disconnection.

As the first choice for modern home Internet access, ADSL brings us some troubles while bringing us broadband enjoyment. Among these troubles, ADSL disconnection is the most troublesome problem. there are many reasons for ADSL disconnection, involving hardware and software issues, and the solution is complicated. therefore, we will make a detailed analysis of some cases of ADSL disconnection in actual application, so that you will not bother or worry about similar problems in the future, it is easy to solve these "troubles ". why is ADSL always disconnected?

Case 1: Ignore the heat dissipation ADSL frequent offline show

A: I am A PPPoE virtual dial-up user and use A wireless router to dial up the Internet. Recently, the Internet is always offline, usually once every 10 minutes.

Small B: Do not use a wireless router to try using the dial-up software that comes with Windows XP.

Small A: I tried it, but it is still the same as frequent disconnection.

Small B: Oh, is the bandwidth connection disconnected when the ADSL line is down?

Small A: No, but no data flow is displayed.

Small B: Check for viruses first.

A: I have already checked it. There are no viruses or Trojans.

Small B: That's strange. Let me check it for you.

Questions:

From the above case, we can see that there is no problem between the wireless router and the operating system, so the cause of the problem should be related to the application software of ADSL. so we downloaded the new dial-up software, but the disconnection failure still failed ....... however, when the ADSL is disconnected, we found that the Ping times out at the DOS prompt, so we can determine that the computer and the ADSL server cannot communicate with each other.

So we waited for the broadband connection to be automatically disconnected. when dialing again, the "678 error" prompt is displayed. check the status of the ADSL Modem again. Everything is normal. so I decided to restart the ADSL Modem. As a result, I would be able to access the Internet after dialing again. Unfortunately, after a while, I lost my connection again ....... it seems that the fault is caused by the ADSL Modem.

I touched the body of the ADSL Modem with my hand and felt very hot. so we turn off the power of the ADSL Modem and wait for it to cool down. after the cold connection is completed, dial-up again to access the Internet. The connection has not been dropped for a long time, but after a few hours, the disconnection frequency has increased significantly. touch the ADSL Modem again and find that it is still very hot. at this time, at the DOS prompt, use the Ping command to check the communication between the computer and the ADSL Modem. as a result, we found the Final Cause of frequent disconnection or even crashes due to overheating of the ADSL Modem.

Summary:

We all know the harm caused by the heat dissipation problem, but we often ignore it in practical applications. For example, many users prefer to fold ADSL Modem and wireless router for use, this will easily cause heat accumulation and eventually lead to ADSL exceptions. in addition, we can not ignore the dust problem, because once the dust is blocked, the heat dissipation effect is naturally greatly discounted, so timely cleaning of dust is also very important. in order to have a better network experience, place these network devices in a well ventilated place and avoid direct sunlight.