Solving the problem of frequent disconnection of wireless router

With the growing sophistication of wireless technology and the continuous enrichment of wireless products, the need for people to use wireless networks is increasing. Because of its simple network and convenient use, the wireless router has become the main mode of the network, so it has been paid more and more attention to the methods and techniques of the fault handling of wireless networks. This article will introduce the common but very easy to ignore the fault handling of the wireless network, hope to be able to enlighten to the general readers when dealing with similar trouble.

First, no line by the problem of disconnection

When a normal internet, adslmoderm and wireless router suddenly power off, restart after the notebook can not find wireless network, can not surf the Internet, this is where the problem? Because the network device is on the internet when an accidental power outage caused the failure to appear, so the result is that the fault may be on the adslmoderm or wireless router.

To determine the breakdown of the specific device, the first adslmoderm directly to the notebook, after dialing the notebook can be connected to the network, but also stable operation, so the problem should be out of the wireless router.

I am using a tp-link wr541g wireless router, peacetime use is still stable, and once also encountered a router suddenly power off the situation, there is nothing unusual, will this power outage on the router hardware damage?

Pick up the router carefully observed, did not find that the local temperature is too high, also did not smell the odor, the appearance does not see anything unusual. Connect the adslmoderm and wireless router to reboot, and the wireless network card on the laptop prompts to discover the network and connect normally. Check the network, found that the normal Internet, network failure seems to suddenly automatically disappeared. But the duration is not long, wireless network card suddenly prompted not to find the Internet, how can this be?

Just as I am still thinking about where the problem may be, the network card also prompts the discovery of the Internet, but not last a minute, and prompted the network can not find, so repeated. Is there a problem with the NIC on the laptop? Restart the computer, the fault remains.

The problem seems to become very complicated at once, from the beginning to suspect the adslmoderm to the router to the laptop card, the author has never found the exact cause of trouble. What exactly is the problem? How the hell do you do that?

Second, no Line by fault analysis

Silently review the whole process of fault phenomenon, and combine to start to do test, the author can come to the following clear information:

1, ADSL moderm directly connected in the notebook can be normal Internet, indicating ADSL moderm and notebook integrated network card should be normal.

2, the use of wireless network card through the router is not normal, indicating that our problems may be in the wireless network card or router.

Based on the above information, you can design the following processing plan:

Connect the integrated network card on the notebook to the wireless router, adslmoderm, and see if the Internet is normal. If normal, it means that the fault is on the wireless card of the notebook, otherwise the problem should be on the wireless router.

The relevant equipment connected properly after the start, the network appears normal, however, the duration is not long, network prompts can not connect, fault recurrence. Now we can conclude that the problem should be on the wireless router. So what happened to the wireless router?

Looking at the router carefully, I was surprised to find that when the ADSL DSL led indicates that the network was connected for about half a minute, the router's LAN port led suddenly flashed together, and then the system led flashed, showing that the route was automatically restarted. What's going on? Does the router break down?

According to the previous test results, we found that whether the integrated network card or wireless network card will be the same fault phenomenon, and two network cards to connect the networks need to go through the link only the router's WLAN port and adslmoderm, but adslmoderm Normal, The problem is further narrowed down to the WLAN port on the router.

In order to confirm the above inference, the author will adslmoderm and the router disconnect, and then connect the computer with the router, found that no matter whether the integrated network card or wireless network card will not appear before the start of the symptoms, so you can determine the router's WLAN port problems.

It seems that the problem has been found, but then there will be a headache. How do we deal with it? This router has only one WLAN port, and if the only WLAN port is broken, the router will only be reimbursed. It seems to have forced himself into a "dead-end".

Third, upgrade software problem solving

Remove the router carefully look at the WLAN port, no smell, local temperature is normal, try to plug in the network, the card mouth contact good, no abnormal physical damage or physical connection abnormalities. At this time the mind flashed an idea: will it be to control the WLAN port software problems? After the wireless router is initialized and reconfigured, the symptom disappears.

The problem seems simple to solve, but it takes a lot of effort to analyze and judge the problem. Summarizing the process of troubleshooting can be found, this is a typical router control software bugs caused by network failure. The characteristic of this kind of problem is that the fault phenomenon is caused by some unexpected factors and the performance is different, and has a strong confusion.

In this example, the author has also encountered a sudden failure of the router, but there is no fault, so the network fault caused by such factors is easily overlooked.

No matter what brand of wireless routers are more or less in the previous design process retained technical defects, that is, often said control software bugs, which makes such factors caused by the fault is very common. This kind of problem must be upgraded from a fundamental solution to upgrade the software for this router, and sometimes it may be multiple upgrades.

Like this tp-link wr541g wireless router, I upgraded the software version later, but I still couldn't avoid a similar failure until it was upgraded to the 1.2.0build060119 rel.40252n version in 2006.

So when you encounter a wireless network failure and can not be a conventional way of thinking analysis and processing, try to analyze this aspect, to see if it can help solve the problem.