Pay attention to the five problems of wireless router configuration

This article describes in detail the issues that need to be paid attention to when configuring wireless routers. This article mainly describes five common problems, I hope this article will be helpful to you.

The development of wireless LAN is now very complete, and the speed is getting faster and faster. The current mainstream products not only achieve the speed of common wired Ethernet, but also have basic security assurance. More importantly, no cabling is required for wireless networking. Therefore, it is the best choice for domestic users of the consumer type. In addition to the popularity of the Chinese version, it is time for most users to purchase a wireless router.

However, with the popularization of wireless routers, the corresponding problems are also increasing. How to configure a wireless router after it is bought is a matter of greatest concern. In fact, configuring a wireless network is not complicated. The steps for configuring a wireless router are similar to those for configuring a wired router, but you need to pay attention to it in a few minutes.

1. place them in place

After obtaining the wireless router, the first thing to do is placement problems. The function of a wireless router is to convert a wired network signal into a wireless signal, which is the core of the entire wireless network. Therefore, its position determines the signal strength and transmission rate of the entire wireless network. Therefore, we recommend that you select a location that is not easily blocked and the signal can cover all corners of the house.

The location of the wireless router should be relatively high. Wireless signals are transmitted in a straight line. Every time an obstacle occurs, wireless signals are weakened, especially metal objects.

The wireless router should be in the center of the room as much as possible. Because the Wireless AP coverage is a circular area, only when the Wireless AP is placed in the center of the room can the wireless signal be received at every location in the room, so as to effectively access the wireless network. The wireless network can automatically adjust the transmission rate to adapt to complex network environments. The closer it is to the Wireless AP, the stronger the wireless signal, the smaller the interference, and the higher the data transmission rate.

Do not wear too many walls, especially reinforced concrete walls. The experiment shows that, at a distance of 10 meters, after a wireless signal passes through two brick walls, it can still reach the nominal highest transmission rate, but after passing through a layer of floor, the transfer rate will be half of the nominal rate. It can be seen that the reinforced concrete wall has a serious impact on wireless signals.

Ii. Careful Configuration

After finding a proper location, the configuration problem is solved. Each network device that complies with the TCP/IP protocol has its own IP address, and the wireless router is no exception. Generally, a wireless router has its own fixed IP address in the LAN. This design also facilitates us to configure and test the wireless router by accessing this IP address. Of course, the IP addresses of wireless routers of different brands are different. For details, refer to the relevant instructions. Note that the wireless network card must be in the same IP segment as the wireless router.

Next, open your browser and enter the address of the wireless network node in the address bar, such as http: // 192.168.254.254/. view the manual and obtain the management password of the wireless network node, after correct input, you can enter the management interface of the wireless network node. For a new router that has not been set up, some will also display the Setup Wizard ). On pages such as Connection Configuration, we can select the broadband network type. Generally, ADSL selects via PPP over Ethernet, while Cable or FTTB selects via DHCP. If the ISP needs to enter the user name and password, we can enter the corresponding location below and set Timeout to around S. Then, we can set the ESSID default value of the wireless router to WLAN. Do not forget to click the Save button after setting.

If the wireless router needs to connect to a 100/10 M wired network as a wired router, we need to further set up. In the System IP Configuration interface under options such as IP/DHCP, when DHCP is set to Enable, in this way, once you set the TCP/IP attribute of the wired network card and wireless network card to automatically get the IP address, you can get an IP address from the wireless router. As for the dns ip address, you can query the local ISP, which is generally not set.

3. Adjust the client

The most important part of the client configuration is the essid id, which must be exactly the same as the ESSID value of the wireless router (including uppercase and lowercase letters ). The essid id is like a password between the wireless client and the wireless router. Only when they are identical can the wireless Nic access the wireless router, this is also an important measure to ensure the security of wireless networks. The ESSID identifiers for different wireless NICs are different, some are in the control panel, and some are using dedicated applications for NICs. For details, refer to the instruction manual. Generally, wireless routers of the same brand and wireless network interfaces use the same essid id default value. You do not need to set the default value. However, this may cause some security risks for commercial users. We recommend that you change the essid id.

Other configurations of the wireless client are very simple. In the past, annoying network settings can be put aside. Open the TCP/IP attribute of the wireless network adapter in the network attribute of the control panel, set the IP address of the wireless network adapter to automatically get, or keep it in the same network segment as the wireless network node. Now, if the wireless network adapter can be connected to a wireless network node, the laptop can access the Internet normally. If the connection fails, check the network settings or adjust the location of the wireless network node.

At this point, the installation process is not complete. At this time, although the broadband sharing function is implemented, it is very insecure. If your neighbor has a wireless network card installed, he will be able to intrude into your wireless LAN, and even use your broadband to download BT. So I need to encrypt the network.

4. Ensure security

WEP encryption is the most common encryption method in the 802.11 series wireless networks. I log on to the management interface of the wireless network node again through the IE browser, find the security option, and choose to enable the WEP encryption function (this function is usually disabled in the factory settings of the wireless network node ), enter a hexadecimal character (the character must be 0 ~ 9 or ~ F) as an encrypted string (the encrypted string must be well remembered and cannot be connected to a wireless network node after it is lost), save the settings and restart the wireless network node (depending on the WEP type, the number of digits of the encrypted string is also different. Usually 64-bit encryption requires a 10-digit string, while 128-bit encryption requires a 26-digit string ).

After the restart, the wireless network adapter cannot be connected to the wireless network node. Now you need to modify "wireless network connection attributes ". Select "Network neighbors", "properties", and "Wireless Network Connection Properties", and then select "wireless network configuration ". Find your own wireless network node in the available network. If there are no other wireless network nodes nearby, only one network should be listed here. Otherwise, other nearby wireless networks will also be listed.

Next, click "attribute" to activate "Data Encryption (WEP enabled, enter the encrypted string in the "Network key" and "Confirm network key" columns below, and then click "OK ", the wireless network adapter can be correctly connected to the wireless network node.

5. Experience Sharing

Generally, the 802.11 series of wireless network products have good compatibility. Most wireless network adapters and wireless routers do not have compatibility problems. But for stability considerations, for high requirements, I suggest using the same brand of wireless routers and wireless network interfaces.

The load-bearing wall of reinforced concrete has a strong obstacle to wireless signals. Therefore, for the "duplex" residential and Villa-type home environment, the best solution is to configure a wireless router for each layer. In practical application, the indoor AP coverage can be up to 30 meters.

The actual usage rate of 802.11b is only about 40% of the nominal value, and the converted data transmission rate is about 64/128 kb/s. If it is set to-bit WEP encryption, the transmission rate will be further reduced, therefore, you must pay more attention to interference during use and try to stay away from microwave ovens, cordless phones, and Bluetooth devices.

If the wireless signal is suddenly weak, no physical changes are made. You can try to change the wireless channel or add an external antenna.

Windows XP has built-in support for WLAN, Which is plug-and-play and easy to use and set. Windows 98, Windows ME, and Windows 2000 are inferior to Windows XP in terms of stability and ease of use for wireless networks, and occasionally conflict with each other. Therefore, if the hardware configuration is high enough, try to use Windows XP. At the same time, it should be noted that the operating systems before Windows 95 (including Windows 95) do not support Wi-Fi.