Frequent exchange failures in wireless networks

Along with the wireless internet technology and the continuous maturity of wireless network equipment prices continue to lower, wireless LAN "Figure" is unwittingly appearing in our work and life. Compared to the ordinary LAN exchange operation, wireless exchange visits more easily encounter some inexplicable fault interference, in the face of these failures, many people often feel unable to deal with. In view of this, this article will now be a frequent occurrence of some of the phenomenon of wireless mutual visits and solutions to contribute to allow friends in the future when the operation of wireless Exchange can be downwind!

Failure to visit a wireless network at intervals

Xiao Wang and Xiao Zhang share their documents with each other through the wireless LAN in the office of the Unit. But in the process of mutual access, there is often a strange fault, that is, when the first transmission of files, the wireless network transmission speed, but if a period of time without any access, The wireless network indicates that the network connection has been disconnected and cannot perform any file transfer operations. So why does this phenomenon occur, how can we make such a wireless exchange of visits to the smooth wind?

In fact, in most cases, this phenomenon is sometimes not a network failure, because most wireless LANs now use wireless router devices, which often provide users with a variety of communication connections, but in the default state most wireless router devices will be "on-demand" mode, when working in this way, The wireless LAN will automatically connect when it detects data transmission. If there is no data in the network for transmission over a period of time, then the wireless LAN will assume that the current network line is in No-load state, then it will automatically disconnect the current network connection, so when we try to access the next time through the wireless network operation, Wireless LAN will naturally eject the connection has been disconnected prompts.

In order to avoid the occurrence of this phenomenon, we will first log into the wireless router's background configuration interface, and find out about the connection mode setting options, and set the value of this option to "automatic connection, after the boot and disconnect automatically connect," Finally save the configuration parameters, and restart the wireless router device, It is believed that wireless LAN will not appear frequently disconnected phenomenon.

Of course, if the above set up operation, the wireless LAN still appears every once in a line off phenomenon, then we need to check whether the current Wireless LAN network virus or hacker attacks, such as Wireless LAN once suffered ARP network attack, That will often appear strange phenomena that the network cannot access every once in a while.

At this point, we might open the Network Connections List window for the local workstation. Right-click the wireless network connection icon in the, from the shortcut menu that pops up, and then open the Properties setting window for the wireless network connection, select the TCP/IP setting option in the Settings window, and in the corresponding option property interface, Try to replace the IP address of the wireless network card by hand, if the wireless network card has updated the address, the local workstation still often appears to drop the phenomenon, then we can only use the professional anti-attack software to protect the wireless LAN Exchange operation.

Wireless network Exchange failure second, access to the unit server speed is slow

Accounting Xiao Li every day before work, all need to through the Wireless LAN network will be the day's billing information uploaded to the unit Server specific folder, in order to allow timely leadership review. The previous transmission of the account information to the server, the blink of an hour can be completed, but recently the unit adjusted the location of the wireless router, Xiao Li to the server upload capacity and the previous size of the accounting documents, each time need to wait a long time. So why does Xiao Li transfer files to the server when the speed suddenly dropped, what should we do to make small Li's workstation and the unit server between the speed of exchange to return to normal state?

Considering that the accounting small Li Xian transmit information to the server before the speed is more normal, and adjust the wireless LAN in the router device, he felt the wireless network transmission speed significantly down, this shows that this fault is likely to be the location of the wireless router changes, resulting in a weak wireless signal, Of course, there may be units of the server in a certain period of busy, resulting in small Li access to the server's speed was affected.

For the unit server busy caused by the speed of access to reduce the failure, usually not our ordinary users can solve, we can do is to avoid the peak server access, while every once in a while to repeatedly visit the server, of course, the best way is to ask the unit's network administrator to find ways to improve the performance of the Ensure that the server responds to user requests for access in a timely manner.

It is more common and often overlooked by ordinary users that the speed of access caused by the placement of wireless routers is down. When the wireless router placement is not suitable, then the wireless workstation can accept the wireless signal is relatively weak, so when it is transmitted through the wireless network file speed naturally is very slow.

In order to solve this problem, we can put the wireless router in the center of the wireless LAN, while ensuring that the device and other wireless workstations can not be separated from the more concrete walls; and one thing to do is to try to put the wireless router in a higher position, Only in this way can the wireless workstation get better communication signal, so the speed of accessing the unit server can be effectively improved.

Failure to access the Internet through the local area network

A unit sets up a wireless local area network where employees can access content directly from the Internet via a wireless local area network. But one day, employee Xiao Meng open their workstation ready to surf the internet, found that can not access content on the Internet, viewing the status of wireless network connection, found that the system is prompted to be able to send information, but can not receive information. What can we do to help our employee, Young Meng, access the content on the Internet when we encounter such an access failure?

First of all, check the staff Xiao Meng's workstation for physical connection is correct. In this regard, we may wish to open the local workstation's IE browser window, and in the window address bar to enter the wireless router's background management address, click the ENTER key to open its background login interface, and then correctly enter the administrator account and password, access to the wireless router background management interface, Ping the local ISP's DNS server address in this interface, which means that the line status between the wireless router and the Internet is unblocked, otherwise we need to check that the wireless router's Internet parameters are properly configured.

Second, in the wireless LAN to find a common workstation, and the workstation system interface switch to the MS-DOS window, and then in the window of the command line to execute the string command "Ping aaa.aaa.aaa.aaa" ( Where the AAA.AAA.AAA.AAA address is the internal interface address of the wireless router, which is the gateway address of the local network, if the command can be executed successfully, it means that the wiring connection within the local LAN network is normal, Otherwise we need to check the correctness of the wireless router configuration and workstation configuration, and also check that the lines between them are unblocked.

If a few of the above ping test can pass, but still can't access the Internet, we also need to check the normal workstation's Internet parameters are set correctly, such as the workstation Internal gateway address and DNS address is correct, etc. When we confirm that these parameters are normal, we will check the wireless router on the NAT configuration is correct, if we can not from the router configuration to find errors, we may wish to check the NAT address translation table, of course, this feature requires our wireless router support.

Wireless network access failure Four, inaccessible wireless router background interface

The recent unit of wireless LAN often occurs in the IP address conflict, and then after the Unit network administrator Small Xu's careful inspection, found that in addition to a dedicated DHCP server in the LAN for Workstation assignment address, the wireless router with the DHCP service in the "Rob" for workstations assigned IP address, The IP address of the workstation is, of course, prone to conflict. To eliminate IP address conflict failures, network administrator small Xu is ready to log into the wireless router background interface, the DHCP service has been enabled temporarily deactivated, but who had thought of small Xu in his workstation to try to log in to the wireless router backstage, how also can not open its background login interface, this is why?

There are many reasons for this failure, different reasons need to adopt different methods to deal with, in which the reasons for the hardware failure is more common, such as network cable fault or short circuit, network connection joints appear loose phenomenon, the wireless router itself has hardware failures. For hardware failure reasons, we usually can determine if there is a hardware problem by looking at the semaphore state in the wireless router control panel. Of course, if the wireless router input voltage is not normal, or the equipment inside the temperature is too high, or the device encountered lightning, it is also easy to cause the wireless router background interface can not access the fault.

In the exclusion of the wireless router background interface phenomenon, we first need to check the wireless router control panel of the data signal light working status is normal, for example, when the power signal is in the intermittent flashing state, which means that the device input voltage is normal, If the wireless router control panel in the other lights are not normal, then we only need to correspond to the status of the signal to be targeted to the investigation.

If the wireless router background interface is still inaccessible after the hardware factor is excluded, then we may want to check the network connection parameters on the local workstation, especially to check that its IP address is on the same subnet as the wireless router's default IP address, if not, We may wish to reassign the local network card to assign a suitable IP address, and as far as possible the local workstation firewall function temporarily shielded, I believe this will be able to resolve the wireless router can not access the background interface fault.

Of course, if the above operation is not valid, then we may wish to press the wireless router Control Panel in the reset button, so that all the work parameters of the device to restore the factory settings, it is not good, you may wish to reinstall the wireless router driver. Of course, if you try all the way to solve the problem, then we have to contact the device manufacturer and check the related hardware conflict.