It is easy to solve the problem of ADSL disconnection when downloading through thunder

I don't know why recently. I often lose my connection when I access the internet. When I called customer service, I found a noise on the phone. I thought it was a problem with the telephone and the network. The customer service said it would solve the noise problem with me. It may be that the line is aging, but the next call showed that the sound quality of my phone was normal. After several days of tests, I found that my computer was still faulty, not that the Network was unstable. As long as I use thunder for downloading, my network will be automatically disconnected as soon as the download speed reaches 200 kb/s. However, my cat light will show normal data lights, however, the display of bandwidth dial-up is that only sent data is not received. Restart the cat and connect to the broadband dial-up again.

So I have obtained some explanatory answers from some data books on vswitches and Routers: the commonly used ADSL (asypolicric Digital Subscriber Loop) dial-up Internet access uses Asymmetric Digital user lines to achieve broadband access to the Internet. The uplink and downloading bandwidths of the Internet are different, for example: 1 Mbps ADSL bandwidth can provide a theoretical downstream bandwidth of 1024 Kbps and a theoretical upstream bandwidth of 512 Kbps. in practical applications, the downstream bandwidth can be stable at around Kbps, the uplink speed can be stable at around kbps. In this way, when you use BT and thunder to download files, if you do not control the upload speed limit (for example, the bandwidth of 1 Mbps of ADSL bandwidth is converted to a maximum upload speed of 60 kb/S ), the maximum bandwidth of the upstream transmission of ADSL may be exceeded, and the data packet will be loaded into the ADSL cache. Even if the ADSL indicator is normal, the data packet may be automatically disconnected (an error occurs: "TCP/IP CP reported error 31: The device connected to the system does not play a role"), a 1450 error may occur when dialing again ("the system resources are insufficient, unable to complete the requested service "). If the upstream data continues to flow out in time, it will cause the ADSL cache overflow, resulting in the ADSL" Sleep "phenomenon, so that only the adsl modem can be restarted.

I have never configured the 31 and 1450 errors, but the current situation is the same as the ADSL 31 errors in the materials. I tried to speed up Thunder, I changed this to 20 kb/s to avoid the cat's cache overflow and solved the problem of frequent disconnection when I used thunder download.