Symptoms and Solutions of ADSL disconnection

The use of ADSL has become popular among all households. With its use, there are also many problems. Here we will explain the problem of ADSL disconnection. Because ADSL is a broadband access technology carried by telephone copper lines, the quality of Telephone Line Transmission directly affects the use of ADSL Broadband. in many cases of ADSL Broadband faults, the disconnection problem is a serious problem, and it is also a fault that troubles ADSL users. the problem of ADSL disconnection is complicated, involving hardware and software, and the solution is also complicated. however, as long as you are proficient in all aspects of the ADSL Broadband Access technology, it will not worry about solving the problem of ADSL disconnection.

Next, we will make a detailed analysis on some of the disconnection failures in the actual application of ADSL Broadband and share them with you. You can handle them based on your own disconnection performance.

Virtual dial-up users are often disconnected

ADSL disconnection fault 1: PPPoE virtual dialing user, using vro dialing. frequent disconnection during use, usually once in about 15 minutes, with irregular disconnection. remove the router and use the dial-up software provided by Windows XP to access the Internet. The fault persists. when the connection is dropped, the broadband connection is not disconnected, but there is no data stream. perform a comprehensive inspection on the operating system. No viruses or Trojans are found.

Fault resolution: From the fault performance, it is not difficult to see that the router is not faulty, and the user's operating system is not faulty. The fault point is related to the application software related to ADSL bandwidth. after downloading the dialing software, the disconnection failure is still unsolved. when the ADSL bandwidth is down, Ping the website at the DOS prompt and find that the connection times out. You can determine that the communication between the computer and the ADSL server has been lost.

After several minutes, the broadband connection will be automatically disconnected. when dialing again, error 678 is displayed. check the status of the ADSL Broadband Modem. Everything is normal. after the ADSL Broadband Modem is restarted, the Internet can be accessed by dialing again. After a period of time, it will automatically fail. it seems that the root cause of the fault is the ADSL Broadband Modem. I touched the ADSL Broadband Modem with my hand and felt a bit hot.

Turn off the power supply of the ADSL Broadband Modem. After the temperature drops, dial up the Internet again. There is no disconnection for two hours. After a few hours, frequent disconnection failures may occur. after frequent disconnection, touch the ADSL Broadband Modem and click it. at the DOS prompt, run the Ping command to check the communication between the computer and the ADSL Broadband Modem. The timeout is found, which indicates that the ADSL Broadband Modem has crashed.

Result of executing the Ping command During disconnection

At this point, the root cause of the ADSL Broadband disconnection fault has been found because the ADSL Broadband Modem has been working for a long time due to poor heat dissipation. after the ADSL Broadband Modem is replaced with a well-ventilated location and the dust in the middle hole is cleared, the fault is basically solved.

Fault comments: in the case of ADSL Broadband faults, many users have been considering software setup and line issues, ignoring the status of the broadband Modem, the most important component of ADSL Broadband Access. the ADSL Broadband Modem will crash due to poor heat dissipation, and the broadband disconnection is also justified.

XP dialing software often goes offline

ADSL disconnection fault 2: PPPoE virtual dialing user, ADSL Broadband Modem is directly connected to the laptop, using the broadband dialing software provided by Windows XP. frequent disconnection failures occur during use. when the connection is dropped, the broadband connection is automatically disconnected. After a while, the connection can be automatically restored.

Fault resolution: the fault can be automatically restored when it is dropped, which seems to be a line problem. we can analyze the call quality of the phone. There is no problem with the line. check the working status of the ADSL Broadband Modem. It can also be seen that there is no problem with the quality of the ADSL Broadband line. the operating system has no viruses or system vulnerabilities that affect the use of ADSL bandwidth. through troubleshooting, we can determine that the root cause of the fault lies in the ADSL Broadband Modem.

ADSL Broadband Modem

Check the ADSL Broadband Modem. The temperature is not high. more importantly, there is no regular disconnection, and there is no indication before the disconnection. since the root cause of the fault is the ADSL Broadband Modem, you can only carefully observe the working status of the ADSL Broadband Modem when the fault is not locked.

Through observation, we found that the ADSL Broadband Modem lights will be extinguished instantly and then lit up in sequence, similar to re-powering up. when the AC voltage is checked with hichina, it is found that the voltage is unstable and fluctuates between 150V-180V, which is also the root cause of ADSL Broadband disconnection.

Fault comment: the working voltage is unstable, which may restart the ADSL Broadband Modem, which is also the cause of frequent ADSL disconnection. because the notebook uses power supply, it will not feel the voltage fluctuation. when ADSL is disconnected, you must carefully observe the working status of the ADSL Broadband Modem. This is a window for judging the fault.

Frequent disconnection for a long time

ADSL disconnection fault 3: PPPoE virtual dialing user, using vro dialing. during the last period of time, lines may occasionally fall between and each night. After the cables are dropped, you can dial again to access the Internet again. because vro is used for automatic dial-up, the client is restored after a transient disconnection.

Fault resolution: Because vro is used for automatic dial-up, the log file of the vro records each dial-up. Therefore, you can view the log file to see the cause of the disconnection. however, the symptoms During disconnection cannot be found in the vro. to this end, you can only remove the router and use a single machine to view the specific symptoms of the disconnection.

Router log

Remove the router and use the built-in dial-up software of Windows XP to access the Internet. When the connection is lost, the broadband connection is automatically disconnected. Then, you can click the connection to access the Internet. on weekends and Sundays, the disconnection frequency is higher. check the ADSL Broadband line. Everything is normal. in desperation, we can only ask for help from broadband operators. The customer service staff explained that due to the sharp increase in bandwidth users, broadband servers are overwhelmed during peak hours and users can only dial again, use the broadband access service provided by another server.

The access service provided by another server is very stable and will not be dropped. Can I specify a dial-up server when dialing? In the vro settings, you can specify the name of the dial-up server. In this way, you can directly use the specified dial-up server during the dial-up, so that no line failure occurs during the peak period.

Fault comment: when dealing with ADSL Broadband faults, it is best to use a single-host environment, so that you can see the performance of the fault more intuitively. when using the troubleshooting method to check whether there is no problem with the user-side broadband, you must call the dialing broadband service hotline to check whether the server has any problems. china Telecom ADSL Broadband Customer Service Hotline 10000; China Netcom ADSL Broadband Customer Service Hotline 10060; China tietong ADSL Broadband Customer Service Hotline 10050.

You cannot open the webpage and log on to QQ

ADSL disconnection fault 4: 24 Mbps ADSL2 + broadband users, the uplink speed is 1 Mbps. using the built-in dial-up software of Windows XP, the Internet is frequently dropped, but there is still data flow in the broadband connection, but the webpage cannot be opened or the QQ cannot be logged on.

Troubleshooting: when the device is disconnected, check the Internet application that the user is using and find that the user is using the BT client to download the movie. Is there a problem with BT? After the BT is switched off and the disconnection fault is eliminated, it seems that the ADSL Broadband disconnection is really a fault for the BT client. How can we use BT to download files continuously?

In fact, P2P downloading software such as BT provides the function of "Preventing stream interruption". After this function is enabled, the ADSL bandwidth will not be interrupted due to excessive data traffic, resulting in a disconnection. p2P download software such as BT also needs to upload files while downloading files, which occupies a large amount of bandwidth. in order not to affect users' use of other Internet applications, users can limit the upstream bandwidth of P2P download software such as BT, which not only makes BT download faster, it can also ensure the smooth operation of other Internet applications.

Failure comments: Some Internet applications consume a lot of bandwidth. If you do not control it, it may lead to a cut-off or even disconnection of Broadband. Therefore, some Internet applications that consume special bandwidth must be limited.

Summary

There are many reasons for ADSL Broadband disconnection, such as unreasonable software settings, poor line quality, and poor heat dissipation of ADSL Broadband Modem. the simplest solution to ADSL disconnection is to eliminate the fault point one by one based on the fault performance, and finally lock the fault point.