Wireless connection prompts "windows cannot connect to the selected network, and the network may not be in the region"

Reproduced to: http://www.tp-link.cn/pages/article-detail.asp? Result = faq & d = 127

Some users often ask us to use our wireless router or wireless network card. The wireless signal in the XP system is good, but the wireless connection fails. The prompt is as follows:

There are two possible causes:

1. Set WEP encryption for the wireless router. The security option is "Shared Key", as shown in:

If the wireless client connects to the wireless signal, the above problem occurs. solution:

(1) Change the security option to "Open System" or "automatic" to allow normal connection.

(2) Add a configuration file on the wireless network configuration page. On the "association" tab, select "shared" for "network identity authentication", as shown in:

2. wireless Router sets WPA-PSK or WPA2/PSK encryption, but because the customer's operating system is windows SP2, windows patches are not fully installed, the user's operating system may not support the WPA encryption method (you can add a wireless configuration file to the user's computer to view the encryption method supported by the user's system, as shown in ), if the wireless connection fails, this interface is displayed. Solution:

(1) Change the "Network Encryption" method in the vro to "WEP", and set the security option to "Open System" or "automatic" to connect normally.
(2) download and install the Windows XP patch (KB893357) on Microsoft's official website, the system will be able to support WPA-PSK or WPA2-PSK, then Wireless can be connected successfully.

To sum up, the cause of this problem is that the wireless security option negotiation between the wireless network card and the wireless router fails.