SOURCE: wath is pre-shared key WLAN
To secure a network against unauthorized access you implement security measures. There are several ways to secure a network and one of them is with a preshared key.
If you are authorized to use the network, the network administrator gives you a string of characters (the key) that you are asked for on first access. If you supply the correct key you are allowed access, and your machine becomes known on the network.
Subsequent asking of the key may not be necessary except if the key has been changed.
Suggestion,
First, go to ur Router Configuration Page. There are 2 pg into related WireLess Configuration Settings. So u find ur problem into the WPA security configuration is under the wlan Security section, and then you select WPA PSK (Pre Shared Key) and TKIP encryption for Lan security. As well as changing the WPA Mode to enabled, u will need to enter a WPA Pre-Shared Key. So u found, which is a Network key and why to need.
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