Modem often lose line how to do the modem often drop line solution

Analysis on the reason of frequent drop of modem

1, if the ADSL modem just as bridging mode access, first through the ADSL Modem Web page to view the line attenuation, Snr margin (this value is normally 15-40db, if less than 10db, indicating that the current line quality is not good enough), line speed and other parameters, If these parameters are abnormal, please call the service provider to check the line; the status parameters can be found in the Web configuration interface of our products.

2, if use is to lead the way by ADSL Modem, and opened the routing function, then:

A. Check LAN for viruses or ARP spoofing.

B. Lan a computer in the Thunder, BT and other peer-to-peer software high-speed download, resulting in insufficient bandwidth resources and off line.

C. The number of LAN computers, data flow too large, resulting in ADSL modem overload, and cause network instability. As compared with the dedicated broadband routers, ADSL routing processing capacity is relatively weak. It is suggested that the ADSL modem should not have more than 5 units when the routing function is turned on.

3, check the ADSL modem software version, update you buy the modem related software

The way to solve the network drop line

1, DTR (data Terminal ready) signal temporarily invalid will cause the drop line. In the default setting, if the DTR signal is invalid, the modem will drop the line. In this respect, additional instruction s25=200 can be used to solve the problem. The directive is to set the DTR signal Invalid cause modem drop line time interval value, in 1% seconds as the unit. In other words, if the DTR signal is invalid and lasts longer than the setting value, it will cause the drop line. The time threshold is set to a little longer to avoid accidental interference that causes the DTR signal to fail instantaneously and thus cause a drop in the line. Some of the modem settings will not have much improvement, the initial setting value is 5,

2. If the carrier of the line is temporarily lost, it will also cause the line to drop. Add additional directive s10=40 to resolve this issue. The directive is to specify the remote carrier after the loss of the machine hang up the delay time, to one-tenth seconds for the unit of time, that is, if the carrier lost more than the time set value, the modem will think that this is the remote modem interrupted the connection, also with the disconnection. The same time threshold is also set to a little longer to avoid the loss of the temporary carrier lost by the line. Similarly, some modem settings will not be much improved, the initial setting value is 14.

3, line noise will also cause the drop line, you can try the above method. Do you notice if there is a murmur when you call, and if so, the Telecommunications Bureau should be required to detect the line. In addition, the removal of any other equipment on the telephone line, including extension, wire splitter, etc. will be better. Because of our indoor telephone leads without shielding easy to introduce interference, so also to ensure that the telephone line away from the power line and other electromagnetic radiation sources. In order to make the data transmission stable and reliable, the modem will reduce the remote modem according to the actual line condition properly.

Connection rate, so when your modem connection speed is not high, you may wish to carefully check the line. Removing the telephone extension or the wire splitter will probably significantly improve the modem's connection rate.

4. The internal defects in the telephone lines are also the cause of the disconnection. You should carefully monitor this, it is best to change a new line. At the same time also check the telephone wire connection plugs and so on is good contact. It is possible that the connection Plug and other raw patina caused by dampness lead to poor contact. In addition, due to the high voltage between two telephone lines, if the * part of the severe damp formation of a larger impedance circuit, which will affect the quality of the call (generally appear to have a murmur, voice small and not clear), the impact on data transmission is not to mention.

5, if the telephone service has the function of call waiting, the Internet is just a call to come in, the modem may think that the signal is the remote modem disconnection. For this reason, you only have to ask the phone company to temporarily cancel the function. In addition, many ISPs have a free control function, that is, when your modem idle time exceeds the predetermined value, such as 15 minutes, the server will kick you out. You can check with your ISP for specific information.

6. Another common cause of disconnection is the incompatibility between modem and modem. No modem can be fully compatible with other brand modem, so it is very useful to see the driver upgrade regularly, which will improve the compatibility of modem and improve the speed and stability of the connection.

7, built-in modem installation problems, see inside the cat installation instructions.

8, please update the modem driver.