Troubleshooting common faults in broadband routers

The common fault of broadband router is excluded in Soho and small and medium-sized enterprise users, broadband router application is very common. For some network novice, there are some failure to explain the manual, sometimes difficult to cope with. Below, the author analyzes some common faults and problems, and provides solutions.

One, the line does not pass, cannot establish the connection

1. Network cable will be connected to the router's WAN port and ADSL modem, telephone lines connected ADSL Modem "line" mouth. The connection between the ADSL modem and the broadband router should use a straight line.

2. Check whether the link light signal in the router LAN is displayed, and whether the router to LAN is normal online. The LAN port of the router can be connected directly to the computer or to the switch.

Second, the network settings are not correct

View the manual find the router default administrative address, for example, the router default IP address is 192.168.123.1, the mask is 255.255.255.0, please connect your computer to the router's LAN port, you can use two methods to set the IP address for the computer.

1. Set the IP address manually. Set your computer's IP address to 192.168.123.xxx (the range of XXX is 2 to 254), the subnet mask is 255.255.255.0, and the default gateway is 192.168.123.1. When using the residential broadband access mode, we should ensure that the internal IP address of the DHCP distribution and the IP address used in the community are in different network segments.

2. Use the router's built-in DHCP server to automatically set the IP address. 1 The TCP/IP protocol for your computer is set to "Automatically obtain IP address" and "Obtain DNS server address automatically". 2 Power off the router and your computer. First turn on the router power and then start your computer.

Three, unable to do ADSL dialing

Open a Web browser, enter the router's administrative address in the address bar, such as 192.168.123.1, when the system will require a login username and password. The username and password can be queried on the product specification. Enter the management interface, select the "Network Parameters" under the "Wan Port Settings", in the main right window, "WAN connection type" select "PPPoE", input "Internet account" and "Internet Password", click the link button.

Four, ISP binding MAC address caused unable to connect

Some broadband providers bind MAC addresses to the authentication server in order to limit the number of access users. At this point, the computer that is bound to the MAC address can be connected to the router LAN port (but the router does not connect to the modem or ISP's wiring), and then the MAC address of the router is copied to the WAN port of the broadband router using the MAC address cloning feature. Under Windows2000/xp Press "Start → run", enter "cmd/k Ipconfig/all", where "physical address" is the local Mac.

Five, the Internet after a period of time off the line, close the router and then open again can connect

1) Too many DHCP servers in the network cause IP address confusion. You need to shut down all DHCP servers in your network, either by manually specifying an IP address or by keeping only one DHCP server. These DHCP servers may exist in Windows2000/nt servers, ADSL routers, and ADSL modems.

2 This model router is incompatible with the ISP's local terminal equipment. This kind of problem only uses the other model router or the ADSL Modem, then observes the question whether solves.

3 the router and ADSL equipment heat dissipation. If the Internet is normal, after a slow speed down, then if the hand touch equipment is very hot, change the speed of a device is normal, indicating a bad cooling environment.

4 to see if all connected computers have worms or Trojans, please use anti-virus tools and trojans kill tools to scan the computer to remove the virus or Trojan and then connected to the network.

Vi. Why net fees far exceed projected costs

If you are not a monthly subscriber, you can choose "on-demand" or "manual connection", and enter the automatic disconnection wait time, to prevent the forgotten disconnection has been connected to waste the Internet time. If the use of timing charges, the router should be set to "on-demand connection", but also set the waiting time for automatic disconnection, that is, when there is no Internet access request within the specified time, the router can automatically cut off the ADSL connection.

Seven, why will appear can use QQ and play the game, but cannot open the webpage the phenomenon

This is a problem with DNS resolution, and it is recommended that you manually set the DNS server address (the address provided at the ISP's end) on the router and computer network card. Also, in the DHCP service settings item, manually set the DNS server address, which needs to be obtained from the ISP vendor.

Eight, forgot the login router Management page password

Generally speaking, the broadband router device behind or in front of a reset button, according to the instructions to hold down the button for a few seconds will restore the default configuration, login Web username and password are restored to the original value respectively.

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