With the popularity of mobile Internet devices such as smartphones and tablets, people's use of the Internet has changed from a computer to a sofa, bedside, bathroom … … wireless router has become a must-have for modern families. For a "small white" user, what kind of wireless router to buy, where to put it, how to ensure full coverage of wireless signals, how to set up to prevent being hacked or invaded? Below, we invite industry experts Let me talk about it. What kind of wireless router is chosen to see the transmission rate. At present, the speed of wireless routers is mainly 150M, 300M, 450M, 600M, 750M and more than Gigabit. The higher the value, the higher the transfer rate and the more expensive the price. Among them, the price of 300M is about 100 yuan, the 450M is 200-400 yuan, and the average household 300M is enough. This is because, first of all, the rate of broadband access to the home is currently only up to 100M, the router rate is higher, and the Internet access rate will not exceed the rate of broadband; secondly, the mobile phone or tablet is affected by its own hardware, and the wireless transmission rate is mostly 54M, the maximum is no more than 150M, and the router speed is high. Look at the brand. Be sure to choose a big brand of products, because the chip that really determines the performance of the wireless router is its chip. The quality of the chips selected by the big brand products is relatively high, and the performance is relatively stable. Some of the miscellaneous products use low-end chips to reduce the cost. Although some parameters are high, the performance is not stable. Look at the antenna. If it is a small and medium-sized apartment and the room type is more square, you can choose a single antenna product; if it is a large apartment and the room type is narrow, select a multi-antenna product, and adjust the antenna angle and the line of defense to increase the signal strength in a certain direction. Where is the router placed? In order to cover the wireless signal to every corner of the home, in addition to choosing the right product, the location of the wireless router is also important. One big rule is to place it as close as possible to the main use area. The WiFi signal is mainly transmitted directly by the obstacle. It will not bypass when it encounters obstacles. If it cannot penetrate, it will be blocked. Then, what kind of obstacles can the WiFi signal penetrate, what can't it? First, the metal can't penetrate. Therefore, only the wired router can be placed in the weak box of the metal casing, and the wireless router cannot be placed. If the conditions are limited, you must also purchase the external product of the antenna, and punch the weak box to expose the antenna. Secondly, the load-bearing walls of houses are mostly reinforced concrete, especially high-rise houses. The steel bars in the walls are interlaced into a net to form an electromagnetic shielding net. Therefore, the signal will be attenuated by half after passing through a load-bearing wall, and generally cannot penetrate two load-bearing walls. . Third, the non-bearing wall (about 10 cm thick) penetrates the two layers. The general problem is not big. Whether it can penetrate the three layers depends on the specific situation. Multiple ways to ensure full coverage For the average family, a wireless router can already achieve basic coverage of wireless signals, but for some special room types such as villas, hops or narrow rooms, some locations need to be replenished. cover. First, wired networks plus mini wireless routers. This solution is for the case where the main room has been wired, and only a small wireless router is installed in the room where the wireless signal is not covered. At present, the mini wireless router can already achieve the size of the cigarette case, and the plug power supply and the body are integrated, very compact, and can be directly plugged into the socket after being connected to the wired network. Second, the power line router plus expander. This solution is aimed at the situation where there is no wired network in each room, and the network signal is transmitted by wires through the “power cat” and the wireless signal is covered to the blank area through the expander. Power line network equipment needs to be purchased in sets, that is, in the form of “1+1” or “1+N”, a power line router can generally drive about 10 expanders. How to prevent the network and invade the home installed wireless router, as long as it is within the wireless signal coverage, whether it is not in the room, wireless security becomes very important, not only to prevent others from smashing the network, but also To prevent malicious intrusions, steal personal privacy and account numbers. As long as the following steps are taken, wireless security is guaranteed. The first step is to change the default administrator password. The administrator password mentioned here refers to the password required to log in to the router for setting. The default is admin, which can be changed to a 10-bit combination of letters, numbers and characters. The second step is to set the wireless password. On the security configuration page of the wireless router, you will often see three wireless encryption methods, namely WPA-PAK/WPA2-PSK, WPA/WPA2 and WEP. We want to choose the first WPA-PAK/WPA2-PSK. The authentication type and encryption algorithm are automatically selected. The password needs to be programmed with a 10-bit combination of letters, numbers and characters. Be careful not to duplicate the login password. The third step, for users with certain experience, can open the MAC address filtering of the wireless router, only allow the allowed mobile phone and tablet connection; also set the SSID hidden in the router, only the preset mobile phone or tablet can find and access Wireless routers, outsiders can not find the router. This article comes from [System Home] www.xp85.com