Knowledge of routers in wireless networks

In the Enterprise wireless network office often appear some use manuals not involved in the problems and failures, sometimes difficult to cope with, can not be resolved. The following is an analysis of typical failures 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.

Wireless network card inspection is also essential, you can replace the new network card and reinstall the driver for debugging, in the network card Click "View Available wireless connection" Refresh the network list after setting the NIC parameters, and in the "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 Two aspects: The computer set relatively simple, click into the "Network Neighborhood" property, open the "Wireless network Connection", and then set the "IP address", "Subnet mask" and "gateway", Just make the IT address of the computer and the IT address of the wireless router on the same network segment. The "gateway" setting can be seen in the card specification, 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 it address, in the pop-up login interface to enter the router's administrator login name and password to enter the settings interface, at this time need to check the network service provider to your broadband account and password is correct, if not correct, after the correction to try to connect, If you still cannot open the page after you connect, click on 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 troubleshoot problems that do not 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 it conflicts, loss and overflow of data, even more can cause network paralysis. These phenomena have a great threat to the enterprise networking.

First go to "Safe Mode with network" To change the IT address of the computer at the wireless network card properties, and then see if it can be networked. 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 the data, communication on the wireless router, the length of the password key can choose 40bit or 128bit. Using a MAC address and a preset network ID to restrict which wireless cards and access points are accessible to the network can ensure network security. For illegal receivers, it is very difficult to intercept the signal of wireless network, which can effectively prevent hacker's intrusion and malicious network attack of illegal users.

Finally, be aware that the Remote Web Administration feature option in the router is disabled 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 router system version, after consulting the wireless router instructions, to see if the 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, select "Software Upgrade" after entering, at this time in the dialog interface will display the current software version and hardware version, in the pop-up dialog box, enter "FileName" (that is, the system upgrade file name) and "TFTP server IP" after the "upgrade" can be.

When upgrading, you should be aware that you should choose to upgrade the software that is consistent with the current hardware version, and do not turn off the power of the router during the upgrade process, or it will cause the router to become corrupted and unusable, and the upgrade process will be very short in the case of a stable network. When you find that the router reboots after the upgrade, do not worry, this is normal, after the general upgrade, the router will be more stable work, and add some new features for this release.