Helps you understand the misunderstandings of wireless network technology.

Wireless network technology is closely related to our daily lives. At the same time, we have encountered many network misunderstandings. Here we will explain in detail how to solve these problems in the face of network misunderstandings. As an essential part of our life, the Internet has become an essential element of clothing, food, housing, and behavior. We can go home without watching TV, newspaper, or broadcast, but we must open the computer and view daily news and news. As an extension of traditional wired networks, wireless networks have become popular in home and office environments with the popularization of terminal devices. Many home users have begun to consider getting rid of the small "tail" behind the cable ", make yourself truly in a relatively small wireless network coverage, with a laptop or PDA in the room to freely access the internet.

As a very important device in wireless networking, the use and debugging of wireless routers are especially important for the quality of network use. Although ordinary consumers know little about wireless routers, however, it is not difficult to properly understand some basic knowledge. When you encounter difficulties or faults in use, you can solve them by yourself, not only saving time, but also learning a little knowledge.

However, many people think that wireless routers can be used for plug-in! No need to set anything? Isn't it good? This is certainly the case for general applications, but if you encounter problems such as: Why is the overall suspension speed slow, and so on, will you be unable to start as a common consumer? Don't believe it. You have had such a friend. Let's take a look at what happened to him.

Two fault analysis and solutions

There are two possibilities for the above mentioned faults: Hybrid wireless networks are often dropped, and IEEE 802.11g has a low transmission rate. Let's take a look at the fault analysis and solutions.

Wireless Network Technology-frequent disconnection from Hybrid Wireless Networks

Fault symptom

Use the built-in network card and Dink DIR-615 wireless router to build a wireless LAN, they use the IEEE 802.11g protocol, there are still a few 802.11N network card. Often dropped when connected using a DIR-615.

Fault Analysis

Theoretically, the IEEE 802.11n protocol is backward compatible with the 802.11g protocol. devices using these two protocols can connect to wireless routers using the IEEE 802.11n protocol at the same time. However, from the actual experience, as long as there is a network adapter using the IEEE 802.11g protocol, the connection speed of the entire network will be reduced to 54 Mb/s (the transmission speed of the IEEE 802.11g protocol ).

Troubleshooting

When using a mix of IEEE 802.11g and IEEE 802.11n wireless devices, you must set the wireless router to a hybrid (MIXED) mode. In this mode, you can use both IEEE 802.11n and 802.11g modes.

Wireless Network Technology-IEEE 802.11g low transmission rate

Fault symptom

To ensure the compatibility of wireless network standards, we generally select wireless APs and wireless NICs that support IEEE 802.11b/g when selecting wireless products. However, in the actual network test, we found that the transmission rate of the wireless link is still low without interference and limited transmission distance, and cannot reach the nominal 54 Mb/s.

Fault Analysis

IEEE 802.11g not only delivers 54 Mbit/s transmission speed, but also is compatible with IEEE 802.11b wireless devices, so as to smoothly upgrade 802.11b wireless networks to 802.11g wireless networks.

Troubleshooting

To be compatible with the existing 802.11b wireless LAN equipment, in addition to using the same GHz band as 802.11b, 802.11g also adopts two different OFDM (Orthogonal Frequency Division Multiplexing) encoding technologies, and the corresponding 802.11b or 802.11g device. That is to say, in a network that uses both 802.11b and 802.11g wireless devices, wireless devices that use 802.11g can communicate with 802.11b devices at a rate of 54 Mb/s, it can also communicate with the 802.11b device at a speed of 11 Mb/s.

Summary:

The situation like a D often occurs in our lives. As a common consumer, we will certainly be depressed. Although many wireless routers currently have functional and WEB interfaces, all settings are user-friendly and try not to cause inconvenience to users, but after all, some minor faults cannot be avoided, therefore, it is more practical to master some simple solutions to the problem. Because of the different environments, you may not need to connect six terminals like a D. Generally, two to three terminals are maintained in the home, however, the principle of failure is the same. Hybrid wireless networks often fall offline and the IEEE 802.11g transmission rate is low. These two are only a small part of the many faults. Some specific situations are analyzed based on the actual situation. We can do some homework first, the rest will be learned in practice.