I often hear complaints from many ADSL users. Why is my network speed so slow? Why is my ADSL always disconnected? In fact, in addition to having a certain relationship with the customer's line quality, the stability and compatibility of the ADSL Broadband Modem are also a critical issue. To improve the performance of ADSL Internet access, You must select a broadband Modem with superior performance.
The rea
Elimination: Check whether the server system works normally; whether the server is down; whether the modem works normally; and whether the local server works normally.
7. fault: no client can access the Internet except the server in the LAN of the Internet cafe.
Analysis and troubleshooting: Check whether the HUB or vswitch works normally. Check whether the network part of the server connected to the HUB or vswitch includes Nic, network cable, connec
There are two common ways of Internet access through ADSL: server sharing and router sharing. If you don't want to waste a computer as a server, you can check whether your ADSL Modem has the routing function (the instructions are provided ), if the ADSL Modem with the routing function is used, the Modem itself can be used as a host. Let's take a look at the speci
Diagnosis Technology
1. the physical layer and its diagnostic physical layer are the most basic layers in the OSI layered structure system. Based on the communication media, the physical interfaces of the system and the communication media are implemented to transparently transmit data link entities, provides services to establish, maintain, and remove physical connections between computers and networks. Physical Layer faults mainly occur when the physical connection mode of the device is corre
We often encounter some faults when using ADSL. Many problems seem very strange, and many friends do not know how to solve them. Here we summarize several cases of ADSL faults to help you analyze and solve them.
ADSL fault 1. Is the "synchronization" light on the ADSL Modem not on?
The "synchronization" lamp (usually the second lamp) on the ADSL Modem is the most important indicator lamp of ADSL. It is the
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 t
In the day-to-day office of many enterprises, network operation and maintenance engineer is the normal work of the staff of the protection of God, if there is any problem the first time to find operation and maintenance. If the operation is not in the enterprise intranet problems, employees have no way, let the time lost in vain, the work is delayed, now not afraid, small series for you to organize some of the LAN network accident diagnosis cases, let you also cameo under the addiction of Engine
use of cable modem technology to realize the "triple net integration" based on the original CATV network, and to build a unified The network can carry a variety of service types, flexible user interface and wide spectrum of access bandwidth from narrowband to broadband, and take advantage of the existing equipment and unique advantages of CATV network, by providing high speed Internet access method and appropriately developing local service in accord
All vro users have encountered vro configuration faults. Here we mainly introduce how to completely solve vro configuration faults. In the case of connectivity problems in the serial port, in order to eliminate the serial port faults, generally, the show interface serial command is used to analyze its screen output report content and locate the problem. The start of the serial port report provides the interface status and line protocol status. Possible Combinations of interfaces and line protoco
Details of several common troubleshooting methods for routers, and details of several troubleshooting methods1. Serial Port troubleshooting
When a connectivity problem occurs in the serial port, in order to eliminate the serial port fault, the show interface serial command is generally used to analyze its screen output report content and locate the problem. The start of the serial port report provides the interface status and line protocol status. Possible Combinations of interfaces and line pro
Internet access? How does the system manage data connections?
4) when the AP communicates with the Modem, how does one change the AT command into a specific operation function, how does one manage the response sent by the Modem to us, how does one manage the AT command channel and Data Channel?
5) how to manage the SIM card phone book?
Android phone system designers must answer the above basic quest
1. Serial Port troubleshooting
When a connectivity problem occurs in the serial port, in order to eliminate the serial port fault, the show interface serial command is generally used to analyze its screen output report content and locate the problem. The start of the serial port report provides the interface status and line protocol status. Possible Combinations of interfaces and line protocols are as follows:
1) serial port running and line protocol running are all working conditions. The seri
requirement. However, even if the download speed is 8 Mbits/s and the upload speed is 1 Mbits/s, our online on-demand movies, software downloads, and online chats will feel fast (hundreds of times more than normal dial-up Modem )! More importantly, using ADSL to access the Internet does not interfere with each other, and there is no need to make phone calls to access the Internet. Of course, the cost of ADSL is also very low (1). You do not need to p
Article Title: Simple Network check (2 ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
2. confirm that there are no problems with the online devices such as the network line, hub, modem, and so on:
Hardware:
After you have completed the network card check (please confirm that the network card can really work
difficulty in understanding SRP is in the case of a multifunctional class, which is not easy to understand the contradiction between versatility and single change. Let's take a look at a modem class example, modem has 4 functions: dial-up, hang up, send data, receive data:
class Modem { public void Dial(string aPno) {…} public void Hangup() {…} p
Small-sized enterprise office networks use ADSL shared Internet access, which is cost-effective. Upgrading ADSL Modem is a highly technical task. If you are not careful, the device may not work properly. Therefore, please think twice before you start!
The general practice is to use the hub with the proxy server software, using a computer as the proxy server, other computers share the Internet through this proxy. Without such Internet sharing, there ha
Small Business office network using ADSL sharing internet economic benefits. Upgrading the ADSL modem is a highly technical work. If you are careless, you may be able to cause the device to not work properly, so please think twice before you do it!
The common practice is to use a hub with Proxy server software, using a computer as a proxy server, other computers through this agent sharing ADSL Internet. But this way of sharing the Internet, with the
access includes a computer, adsl modem, a separator, a nic, and an ADSL telephone line. The correct connection method is to connect the telephone line to the separator, connect the Phone to the Phone interface of the separator, and connect the ADSL Modem to the Modem interface. Connect the computer network card to the ADSL M
The popularity of broadband has greatly changed our network life and made it more colorful. However, the various faults and problems that followed have made it impossible for many netizens who first came into contact with broadband. The failure of the broadband network is very different from that of the conventional Modem. This article takes the city of Shanghai where the author is located as an example to describe various common faults.
Line Fault
Th
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