Application viewpoint: Guide to classic troubleshooting of Broadband Router faults

There are a lot of Broadband Router users, so I have studied the classic troubleshooting guide for Broadband Router faults, and I will share it with you here, hoping it will be useful to you. A Broadband Router is a required device for Internet sharing. After multiple computers are connected, they receive distribution signals from the Broadband Router. Therefore, the maintenance and troubleshooting work in this area cannot be ignored. Therefore, this article selects the most common failures of the Broadband Router in daily use, and puts forward solutions. It is hoped that this article will help readers analyze and solve such faults.

1. The Internet access speed slows down after using a Broadband Router.

Fault: two computers need to share the internet, so a Broadband Router is installed. However, even if only one computer is surfing the Internet, the speed is slow. Why?

Troubleshooting: this is actually not counted as a fault. Shared Internet access through a Broadband Router will result in a certain loss of Internet access speed, which cannot be avoided. However, you can minimize the loss by changing the MTU value of the router. the MTU value indicates the maximum packet transmitted over the network, in bytes. Different access methods have different MTU values. If the value is too large, many data packet fragments are generated, increasing the packet loss rate and reducing the network speed. The MTU value of the common broadband PPPoE connection method is up to 1492. The solution is to gradually lower the MaxMTU value in the registry until the network is most normal. The location of MaxMTU in the registry is:

HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Services \ sNetTrans \ 00yy, with the key name "MaxMTU", where "yy" is the TCP/IP entry, which varies with the settings, generally between 00 and 30. How can we determine whether an MTU value is the most suitable? Enter the DOS environment and enter the following command line: ping-f-l 1492 192.168.0.1. Tip: "192.168.0.1" is the gateway IP address, 1492 is the packet length, and the parameter "-l" is lower case L. if the following message is displayed: Packet needs to be fragmented but DF set, the MTU value is too large, as shown in. If Reply from 192.168.0.1: bytes = 1492 time <10 ms TTL = 128 is displayed, the MTU value is feasible. However, we recommend that you try multiple values to find the best value.

Problem summary: this is also a small drawback of using a Broadband Router to access the Internet. The measurement of the network speed proves that, after a Broadband Router is installed between the ADSL connected computers and multiple computers are online at the same time, the router may delay in address resolution, route distribution, and other aspects, the actual speed of reaching the computer is a little slower than that of connecting a single machine directly to the ADSL line.

2. You cannot dial a bandwidth router when connected.

Fault: using a server as a proxy to share the Internet access through ADSL, the dial-up is always normal. After a Broadband Router is installed, the dial-up cannot be performed.

Fault solution: According to the phenomenon, the hardware of the product just bought should not be faulty. Most of the problems are caused by the software configuration of the router. You can find the vro product manual and enter the configuration interface according to its default IP address. Because ADSL dial-up is used for Internet access, the network protocol should be PPPoE; in addition, you must correctly enter the ADSL user name and password obtained from the ISP. Then, enable the DHCP service to enable the vro to automatically assign IP addresses and DNS information to the clients connected to it. After configuring these steps and then dialing, the problem is generally solved. In addition, the current broadband routers generally have the automatic dialing function. If there is a problem with Manual dialing, you can configure it in the vro according to the preceding settings to enable all the computers in the network to start online, no need to dial again. Problem summary: from this example, we can see that most of the Broadband Router problems come from software configuration.

3. frequently dropped Internet connections when using a Broadband Router.

Fault: a LAN of four computers is connected to a Broadband Router to share ADSL. One of the computers has recently encountered the problem of disconnection and automatic reconnection. Troubleshooting: the network connection is only timed disconnection, indicating that the problem is still caused by the Broadband Router itself, such as stability and setting. You can troubleshoot the problem according to the following ideas or methods.

1) check whether the software is frequently used to download documents from the LAN. In a shared network, this is a big problem that affects the speed.

2) Check the system log of the vro to check whether the cause can be found by analyzing the error information. Alternatively, select "On-Demand connection" in the "WAN Settings" of the vro ", set the automatic disconnection wait time to 0 minutes.

3) reset the router to the default factory settings, and then enter the password to reconfigure it ).

4) Go to the official vro website to find the latest upgrades and patches related to this product.

Problem summary: the continuous restart of network devices is common, and the problems may also come from multiple aspects. When troubleshooting such problems, you should be careful and bold enough to consider some sources of problems.

4. You cannot log on to the Broadband Router settings page.

Fault description: Why cannot I enter the management interface when I want to configure shared Internet access for a Broadband Router? Troubleshooting: If you have successfully entered the configuration interface before, first check the hardware connection between the Broadband Router and the computer, such as whether the indicator on the corresponding LAN port of the nic and router is flashing normally; check whether a software firewall exists in the system. If yes, disable it. Then, view the Network Properties of the nic and the vro instructions. If DHCP is enabled by default, set the NIC to "automatically get IP Address". Otherwise, you must set the local address to the same network segment as the Broadband Router, and then set the gateway address to the default IP address of the router.

Generally, the Broadband Router provides Web management. Open the "Internet Options" dialog box and select the "connection" tab. If you have created a connection, check the "Never dial-up connections" option, click LAN Settings to clear all options. Through the comprehensive use of the above solutions, we should be able to solve this problem.

Problem summary: It is also common that you cannot enter the Broadband Router management interface for configuration. On the one hand, you must carefully read the product manual and enter the correct default router address. On the other hand, check whether the Broadband Router is correctly connected to the computer. In this way, you can access the management interface of the Broadband Router normally.

Summary: In my personal experience, the failure rate of the Broadband Router is very small. In the first use, the Internet access problem may occur due to unfamiliar operations, route configuration errors, and other reasons. However, we also need to remind readers that they should turn off the power of the Broadband Router during the evening break so that they can have a "rest" Time for cooling so that they can have better long-term work.