Why do wireless routers often fall offline?

Users who use wireless routers have encountered frequent disconnection problems. Here we mainly explain the solutions and causes of this problem. In recent Internet forums, many netizens have reported that home routers may experience a 24-hour disconnection. In fact, this may be a means for operators to prevent account theft, users do not have to worry too much. However, in addition to the quality problems of carriers and routers, in many cases, it is still very common for a router to be dropped due to incorrect user usage and configuration.

A user asked: I used a 54M wireless router in my house. I used to use only one machine and never dropped the cable. I often lost the cable after I bought a notebook, is there a similar situation? What are possible problems? How can this problem be solved? As a home user, the problem of this user is quite common. After a wireless router is in normal use for a period of time, there is always a problem of product but disconnection. To solve this problem, we must consider the working principle of wireless routing and the particularity of the home environment.

In view of the user's problems, we must first consider the acceptor, that is, the laptop. Network Connection errors may occur due to compatibility or driver problems of the network adapter. First, we should check whether the NIC has any quality defects, and then check whether the NIC Driver is normal or the driver version is too old. If the laptop uses a wireless network card and a route connection, most wireless network cards and routes of different brands are compatible except for the wireless package, however, it is not ruled out that the interoperability between a very small number of products is unsatisfactory.

Eliminate driver problems

In addition, the home environment is relatively random, and the location of the wireless router may be changed frequently. However, because the wireless router transmits signals through electromagnetic waves, we must consider the environment when selecting the placement location. Keep the route away from cordless phones and microwave ovens as much as possible. In addition, it can even be used in air conditioners, washing machines, and refrigerators to avoid electromagnetic interference or disconnection.

Due to the special nature of the wireless network signal, we have to consider the environment when installing or deploying the network. In the family, the main devices that can affect wireless networks include cordless phones and microwave ovens. In addition, electrical appliances such as air conditioners, washing machines, and refrigerators may also produce electromagnetic interference. While avoiding electrical appliances as much as possible, I suggest you place the routers in the middle of the room. The reason is that the transmission range of wireless devices is a sphere in the middle of the room, the diameter of the signal range can be covered in the whole House to achieve better transmission effect.

Wireless signal transmission away from

In addition, the location of the wireless route antenna is worth noting. Currently, the antennas of most home wireless routers are omnidirectional, and their placement angle will affect the signal quality to a certain extent. As for how to achieve the best signal effect, you also need to adjust it according to the actual environment. Channel conflict. With the popularity of wireless products in the home, channel selection is a factor that we have to consider. When multiple wireless devices use the same channel, such as neighbors ), it is very likely that the transmission is not ideal or even dropped. If a channel conflict occurs, you can select the one that best suits you according to all wireless channels in the region on the router configuration page. When selecting a channel, it is best to avoid the upper or lower two digits of the number of occupied channels)

In addition, the IEEE802.11b/g standard only supports three non-overlapping transmission channels. Only Channels 1, 6, 11, and 13 do not conflict, however, devices that use Channel 3 will interfere with Channels 1 and 6, while devices that use Channel 9 will interfere with channels 6 and 13 ....... The solution is to change to an uncommon wireless channel on the wireless router setting interface, and use different channels 1, 6, and 11 to reduce conflicts.

Of course, frequent disconnection may also be caused by the heat dissipation of the router. At this time, we need to pay attention to using the external radiator for Auxiliary Heat Dissipation, and do not overlay the broadband devices, wireless routers, and so on, which will increase the heat dissipation burden of various devices. Finally, for most home users, the most common way for ADSL cat to connect to a wireless router is to distribute the network. When a line is dropped, we must first consider the line problem. First, try using ADSL to access the Internet. If you can access the Internet normally, you can determine that the problem is caused by a wireless router. If the problem is also dropped, you can ask the ISP to check the quality of the incoming lines. Because the incoming telephone line is too long, there are too many connections, or there are some interference sources, it may also lead to disconnection .)

Precautions for wireless networks in dormitory

In addition to home users, due to the ease of use and simple sharing of wireless routing, many student dormitories now use it as the preferred networking tool. How can we avoid frequent disconnection of wireless routing in the dormitory? The following points are worth noting. Online games and BT downloads are common in student dormitories. In this case, we should consider that the wireless routing may be out of line due to heavy load. For example, if a large number of users in the broadband shared network are downloading BT, the router may be disconnected due to heavy load.

If the load is too high, the router will be disconnected.

To avoid this situation, we can limit the traffic and bandwidth of BT downloads to avoid affecting the normal internet access of other users, especially shared bandwidth such as CM, FTTX + LAN, crazy P2P downloads are the main cause of network paralysis or frequent disconnection. Of course, we can also change the connection speed of a large site to see if the connection speed is normal, or reduce the download burden. Compared with home users, because there are many users in the dormitory, the probability of virus attacks is very high, so effective prevention of viruses will avoid router disconnection or even more serious faults. For experienced users, when they find that the access speed to the LAN or conventional operations slows down, they will realize that this is probably caused by viruses. In this case, we can use the new anti-virus software for scanning and removal, or PING the gateway to view the traffic to locate the problem.

A wireless router is the same as a wired route, and there is an upper limit on the number of hosts. For dormitory users, if the network is not encrypted or a large number of users are allowed to connect, it is likely that the network load is too large, resulting in a crash or disconnection problem. In order to avoid the above situations, we can limit the processor and cache performance to reduce the number of wireless routers with around 3-10, and also meet the needs of all users in the dormitory.

3-10 is more suitable for dormitory

In the above section, we have made a simple analysis on possible wireless route disconnection problems for home and student dormitory users. We can see that wireless networks bring us convenience while at the same time, it also requires us to be more careful and attentive. At present, the wireless product technologies of 54M and ipvm are relatively mature, especially when the stability of some big-name products is more prominent, so when wireless networks frequently fall offline, in addition to dialing the manufacturer's phone number in time, you should also analyze the reason for disconnection to restore the network as soon as possible.