Troubleshooting Enterprise Wireless Routers

With the rapid development of social Information technology now, Enterprise network Office has officially stepped into the field of wireless network. The biggest advantage of building a wireless network is that the network without wiring, the use of convenient, economic. Therefore, for most enterprises, is undoubtedly the best choice for networking programs. A large number of wireless routers are used in the enterprise, making fault diagnosis and security for wireless networks as important as wired networks.

In the Enterprise wireless network office often appear some use manuals did not involve problems and failures, sometimes difficult to cope with, can not be resolved. The following author analyzes the typical faults caused by routers in wireless networks and provides solutions.

Connection error line is disconnected

There are a number of reasons for the network line failure, but the first thing to check is whether there are errors in the connection configuration.

Check the broadband access side first while ensuring that the router is properly powered. The LED on the router can indicate whether the broadband access port is normal, the manual can identify which light is the broadband access and the client side, observe the light flashing state, continuous flashing for normal, not bright or long light does not flicker as a fault. We can switch to a broadband rubber line instead of the original line to connect.

If the fault is still, check whether the location of the router is too far away from the receiving computer or there is a large barrier between them. At this point, please reseat the router so that the wireless router and the receiving computer do not have too many obstacles, and so that the receiving computer in the wireless router signal launch range can be. (Computer science)

Wireless network card inspection is also essential, you can replace the new network card and reinstall the driver for debugging, and then click "View Available wireless connection" Refresh "network list" after setting network card parameters, and then "properties" to see if there is no data sent and received, troubleshooting.

Of course, the router's own hardware failure is the direct cause of the line, but this is not the scope we can solve, should promptly contact the manufacturer for repair or replacement.

Improper settings Cannot connect

"Settings" can be divided into computer settings and router settings in two aspects.

The computer's settings are relatively simple, click into the "Network Neighborhood" attribute, open "wireless network Connection", and then set the "IP address" subnet mask and "gateway", so long as the computer's IP address and wireless router IP address on the same network segment can be. The "gateway" setting can be seen in the NIC description, which is typically the same as the router IP address.

Router settings are relatively professional and complex. First in the System browser to enter the wireless router IP address, in the pop-up login interface to enter the router's administrator login name and password to enter the Setup interface. At this point need to check the network service provider to your broadband account and password is correct, if not correct, try to connect after correction, if you cannot open the page after the connection, click Enter the "Security settings" option in the router to see if the "Network Firewall", "IP address Filtering" and "MAC address filtering" options are turned on. and make corrections and settings to eliminate the failure to open the network.

Network attacks cause networking anomalies

ARP attacks and illegal intrusion into unprotected wireless LANs are now typical examples of network anomalies. Due to the negligence of security settings and the lack of safety protection in the later period, a few malicious hackers caused great harm to the important information and confidential data of the enterprise.

ARP attacks can cause network IP conflict, data loss and overflow, even more will lead to network paralysis. These phenomena have a great threat to the enterprise networking.

First enter the "Safe Mode with the network", the wireless network card properties to replace the computer's IP address, and then see if you can network. In addition, the purchase of the installation of professional anti-virus software and network firewall is one of the more shortcut methods.

Next, enter the router's security settings option for advanced settings. Today, most wireless routers have WEP password encoding function, with the longest 128bit password to encode data, communication on the wireless router, password key length can choose 40bit or 128bit, Using MAC addresses and preset network IDs to restrict which wireless cards and access points are accessible to the network, can guarantee the network security completely, for illegal receive this, intercept the wireless network signal is very difficult, thus can effectively guard against Hacker's intrusion to destroy and the illegal user malicious network attack.

Finally, be aware of the option to disable Remote Web Administration in the router without special needs or expertise.

The router is partially functional and unable to use

This problem mostly exists in some old wireless routers, when we configure the Router Advanced feature options, in the repeated confirmation of the connection is correct, there is a part of the function can not be used, then you may first think of whether the hardware has failed, but it is not.

First we want to look at the next router system version, after consulting the wireless router instructions, to see if this feature supports this version of the router system. Routers often have many versions of the system, and each version supports different functions. If your current version of the software does not support this feature, then you should find the appropriate software to upgrade first.

Tap into the wireless router's System Tools option, after entering the "software Upgrade", at this time in the dialogue interface will display the current version of the software and hardware version, in the pop-up dialog box entered the "filename" (that is, the system upgrade file name) and "TFTP server IP" after the "upgrade" can be.

The upgrade should be noted: Select the same as the current hardware version of the software to upgrade, do not turn off the power of the router during the upgrade, otherwise it will cause the router to be damaged and unusable, the network stability in the case of the upgrade process is very short the entire process will not be more than a minute. When you find that the router reboots after the upgrade, do not worry that this is normal. After a general upgrade, the router works more stably and adds some new features that apply to this release.

Conclusion:

Enterprises in the huge market, information and data confidentiality and security is a top priority, in its use of wireless network, LAN security issues are particularly important, many people may ask: the wireless network through the invisible Radio data transmission of the security of the WLAN? In fact, wireless LANs are more secure than most wired LANs. Wireless LAN inherent security characteristics, so that a lot of trade-sensitive industry application of wireless LAN has become possible, but the wireless LAN how safe to escape the failure of the occurrence, as long as regular inspection, upgrade, timely replacement and maintenance can be avoided due to network failure caused by the significant loss.