Restart your computer and try to connect to my UNB Wifi again.
Try a different laptop to see whether it has the same problem.
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To determine which version of Windows you are running, press the Windows key on your keyboard and type winver into the search field, then press enter.
When try to connect the wifi, it always shows “waiting for the network …”, and it disappears after you entering the security key.
Please check the Service Pack of your laptop to see whether it’s SP1 、 SP2 or SP3 ( Click on Start, find my computer, right click on my computer and choose properties) SP1 can support WEP ony; SP2 can support WEP 、 WPA-PSK(WPA-personal); SP3 can support WEP 、 WPA-PSK （ WPA-personal ） 、 WPA2-PSK （ WPA2-personal ） Please make sure of the SP version of your laptop and set the corresponding security type. Once connected to the wifi, it shows “Validating identity” （ Windows cannot find a certificate to log you on the network ） Please try to cancel the authentication by click Here 4. Try to change your SSID and channel on the router’s configuration page.