Troubleshoot wireless routers with no internet access

When using a wireless router for broadband dial-up access, we may often encounter the device can not automatically dial the strange phenomenon, when we encounter this phenomenon, we can from the following aspects to check: first of all to confirm the use of their own wireless router is the local telecommunications Department of the network license, If the device does not have access to the telecommunications network at all, then the wireless router through the local telecommunications department provided by the line to dial operations, it is easy to automatically dial the phenomenon of failure.

For example, a wireless router may be normal in the south, but it may not be normal after the north, in order to solve this incompatibility, the general need for the wireless router within the relevant firmware for special upgrades to ensure that the wireless router dial normal. At present, the introduction of the market of wireless routers, broadband routers are not compatible with the local telecommunications department ADSL network line equipment, even if these products can be compatible with dial-up, but in the regular use of the process is also prone to dial-up disconnection and other failures.

Wireless routers do not have access to the Internet in fact, we can use the local telecommunications department equipped with ADSL client devices for dial-up access, after all, these devices are built-in PPPoE dial-up function, the dial-up function is almost always recognized by the local telecommunications Department, Using the PPPoE dial-up feature from the ADSL client can ensure that dial-up Internet access is both stable and fast.

Second, check the wireless router for the correct parameter settings, especially to see if the MTU value is set correctly. When dial-up information is transmitted on the network line, it is often automatically segmented into different sizes of data packets, and the MTU value parameter is used to specify the packet size standard.

When the MTU value is set larger, it means that the data packet size is larger, theoretically can also achieve the purpose of increasing the transmission rate, but we can not arbitrarily set the MTU is too large, after all, the data packet is too large, dial-up information in the transmission is very easy to error, especially with the telecommunications Department of the local equipment parameters do not match.

Wireless routers do not have access to the Internet normally, we can set the MTU value to a maximum of 1492 when using the PPPoE dial-up connection, and try to set the maximum number of MTU values to 1500 if you are surfing the Internet over the LAN mode. Therefore, when the wireless router is not able to automatically dial the phenomenon, we can enter the background of the device to set up the interface, check the device's MTU value is 1492, if found wrong, must be in time to modify it.

Let's see if the ADSL Client access device is working the right way. In general, ADSL access equipment mainly includes ADSL modem and ADSL router two types, of which ADSL modem equipment only support bridge working mode, and ADSL router can support bridge working mode and routing work.

ADSL Router equipment is currently widely used broadband Internet access equipment, it supports PPPoE, RFC-1483 Bridge, PPPoA, Enet EnCap, such as data packaging, if we use ADSL router equipment and wireless router equipment to network, Then we must first let the dial-up line through the ADSL router device and then connected to the wireless router, and then by the wireless router for PPPoE dial-up operation;

And we have to first the ADSL router equipment to adjust the mode of work to the RfC 1483 bridge bridging method, then to connect to the wireless router, and finally login to the wireless Router Background Management window, through the Parameter Settings Wizard function set up a network access mode, When setting up the access mode, you must select the ADSL PPPoE dial-up method, at the same time the ISP service provider's account information and Vpi/vci parameters correctly set up, I believe that through the above efforts, wireless routers can not automatically dial the fault phenomenon must be able to exclude