Wireless Network Fault instance analysis

The use of wireless networks has been very frequent, so there are still some difficulties for us to solve the fault instance. Here we will give a detailed description. Many of us are familiar with the use of wireless networks, but are we unprepared for various complicated wireless network faults? Here we will summarize some common solutions for you.

With the improvement of wireless network performance, more and more enterprises are using wireless networks as an effective supplement and extension of wired networks. This is not the case. At the beginning of the year, I set up wireless network points in the conference room, training room, General Manager Office, and other office sites to facilitate the access of customers, meetings, and training, unlimited Internet access.

Now the wireless network has been deployed for nearly eight months. In this process, many strange problems have emerged. Below I will list my problems, which may provide you with some ideas to solve them.

Wireless Network Fault 1: cordless phones harass wireless network signals

In the general manager's office, we have a cordless phone for the convenience of calling the boss. In normal times, you can use a wireless network for normal calls. However, when the boss uses a cordless phone call, the network speed will obviously slow down.

At the beginning, I did not know that it was caused by a cordless phone call. They are desperately looking for problems with wireless routers or wireless network adapters. After a series of troubleshooting, there was no problem with these hardware. So what is it? Later, I considered that this kind of network fault would only occur when I call a cordless phone. Is it a cordless phone problem. Later, I wanted to ask the technical staff of the wireless router manufacturer for advice. It turns out that some cordless phones use the same channel as the wireless router, for example, 2.4 GHZ. Therefore, wireless network signals are disturbed when a cordless phone call is used.

Solution:

After finding the cause of the problem, it is easy to solve the problem. There are two main solutions.

1. Do not use cordless phones, or change to a cordless phone that is not in conflict with each other.

I cannot disable it because it is used by the boss. So I was looking for a cordless phone with different frequencies. However, the boss is fond of this brand because of its brand addiction. So there is no way, this method does not work.

2. Change the signal of the wireless router

This is easy to handle. I found it on the market and immediately found the wireless router from other signals. In fact, sometimes we can try to modify the signal of the wireless router, which can save money on a router. But I don't want to be so troublesome, because only the general manager's office is using cordless phones, so I directly changed a wireless router using other signal channels.

Wireless Network Fault 2: Wireless Network Connection faults between different locations

Some users reported that they used wireless networks to access the Internet well in the general manager's office. However, they could not access the Internet as soon as they arrived in the conference room. Wireless networks are also deployed in the meeting room. How did this happen?

After multi-path analysis, I think it may be caused by some reasons.

1. There is a wall between the conference room and the general manager's office.

Therefore, in the conference room, wireless network signals sent from the general manager's office are relatively poor. Therefore, there are wireless routers in the conference room. However, when employees go from the general manager's office to the conference room, they still use the wireless launch point of the general manager's office. Although the signal sent from the general manager's office is weak, it has not completely disappeared. Therefore, the employee's notebook cannot be automatically connected to the wireless router in the meeting room. Because the notebook cannot determine which router to connect to based on the signal difference, you need to manually specify the connection.

2. Different SSID configurations

Because our conference room is different from the wireless router brand used by the general manager's office. Considering that many people may access the Internet at the same time in the conference room, a high-performance wireless router is adopted. Because of the different wireless router brands, the SSID numbers of the two are also different. Some wireless network adapters cannot automatically adjust the SSID configuration, which leads to the location change. If the unlimited router is different, the laptop cannot access the Internet normally.

3. the wireless router in the meeting room is faulty.

However, when my laptop obtains the meeting room, wireless network signals can be used normally. It can be seen that there is no problem with the wireless router in the meeting room.

Later, I went through multiple tests and found that it was caused by the first reason. I accidentally discovered that after closing the door of the meeting room, the wireless network card will automatically disconnect the connection with the general manager's office in a few minutes, because the wireless signal has disappeared. The wireless router automatically finds and connects to the meeting room. It can be seen that this is caused by the absence of wireless router signals from the Office of the General Manager in the conference room.

Solution:

In the conference room, employees need to manually adjust the connected wireless router. On a laptop, let it automatically search for a wireless router and find all the wireless routers near the location. Then let the user select the most signal wireless router to connect.

When deploying a wireless network, you must pay attention to the interference between the signals of each wireless router. For example, when selecting a wireless network card, it is best to select the wireless router that can automatically select the most Signal Based on the signal strength. In this way, you can save the trouble of manual intervention. The wireless network card will automatically search for wireless network signals at regular intervals, and automatically select a wireless network with strong signals based on the signal strength.