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Unable to connect to a WiFi network encrypted in WPA
Wifi Network security is meant to protect a wireless network from unauthorized access. At times it may be that users are unable to connect to a wifi network which is encrypted with WPA. The WPA encrypted Wifi Network asks for an authentication key before a connection can be made. If a valid key is provided and the user is still unable to connect to a wifi network encrypted with WPA, there could be a problem in the channel. Even if the status of the signal strength is good, there could be some congestion on it. Selecting a different channel can help solve the issue.
I am unable to connect to a WPA-encrypted WiFi network even though it is listed and has a strong signal. It spends a long time trying to establish a connection before failing with an error message.
My configuration
Freebox v5 in router and WiFi mode with WPA key
Atheros WiFi card
Windows Vista
Note: this tip may work on other configurations.
Solution
Go to the console for wireless management of your other Wi-Fi router:
Disable automatic channel
Select channel No. 10
Choose an alphanumeric WPA key (using only letters and numbers)
Explanation
Channel 11 is the default channel in all configurations and it is possible this has caused interference with the signal. Changing the channel should stop this.
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