Router fault phenomenon and cause analysis

Routers in the use of the process, you will encounter a variety of fault situations, how should this be done? In fact, there are many articles about router failure in this site, but there are many people do not know what kind of failure, this article to illustrate some of the symptoms and reasons.

One, ADSL modem on the general will have an ADSL lamp, under normal circumstances, the modem power and after the telephone line, the lantern is roughly regular speed flashing, flashing finally stop into a long light; if the light is endless flashing is not long bright, please contact and inform the ISP your ADSL Modem with the local switch can not sync, this adsl/dsl lamp long bright condition, is necessary.

Second, in the configuration process to fill in the Internet password when the wrong mistake, may wish to re-enter again, this is very important, many times is because of this step error has been unable to dial the number, also can not find the reason, so be sure to be careful.

Third, ADSL MODEM enabled the routing mode, the need to reset ADSL mdoem to bridge mode; How to reset to the bridge mode can be contacted with modem manufacturers to obtain the operation method; You can also judge the computer to connect to the MODEM, and dial on the computer, after the successful dialing, you can surf the internet, If this is the case, it means that the modem works in bridging mode, which can eliminate this possibility.

Four, ISP computer network card MAC address to help set to the ADSL line; The solution is to use the router's MAC address cloning function, the MAC address of the network card copy to the router's WAN, if the above possibilities are excluded, ADSL PPPoE dial-up generally no problem, Here are a few other reasons to be concerned about the failure.

Five, your broadband access is that kind of Ethernet line directly introduced, not ADSL but also need to dial, dial-up software is not limited to one, the authentication of the use of the Protocol is PPPoE, but the dial-up success is not;

If your ISP promises bandwidth of 10Mbps, it is recommended that you find a 10/100m, adaptive hub that connects the broadband feed to the hub and then the hub to the router Wan; After such a rate-matching process, dialing should be fine.

Six, before purchasing a router, you also run the Dial-up software through the computer, fill in the User name password dialing. But Dial-up Software is a special software provided by the ISP, other software dialing is not successful; If this is the case, please contact your ISP for advice: Your broadband access, authentication using the protocol is 802. 1X? If yes, it could be that the authentication system adds private information to the development process, causing the router to dial down.

Seven, can not normal access to the Internet, may be for different reasons, you want to the internal LAN computer network operation, open different permissions, such as only allowed to log on to certain sites, can only send and receive e-mail, part of the restrictions, part of the restrictions; Some routers are not fully implemented, such as IP address and network card address binding This function, routers can not be completely done.

The operation of the Internet, its essence is the computer constantly send request packets, these request packets must contain some parameters such as: Source IP, Destination IP, source port, destination port, etc., the router is through the restrictions on these parameters to control the internal network of computers different access to the Internet.